| 
                 
                    Closing price on 8/4/2011
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    21.50 | 
                 
                
                    | High | 
                    22.50 | 
                 
                
                    | Low | 
                    21.50 | 
                     
                
                    | Volume | 
                    6,160 | 
                                 
                
                    | Split-adjusted Price | 
                    15.55 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
DLG Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/4/2011
             | 
            
                0.00 / 0.00%
             |             
            
                21.50
             |           
            
                22.50
             |               
            
                21.50
             |                           
            
                21.50
             | 
            
                21.50
             |                     
            
                15.55
             |                                 
            
                6,160
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2011
             | 
            
                +0.50 / +2.38%
             |             
            
                21.80
             |           
            
                21.80
             |               
            
                20.00
             |                           
            
                21.50
             | 
            
                21.50
             |                     
            
                15.55
             |                                 
            
                30,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/2/2011
             | 
            
                -1.00 / -4.55%
             |             
            
                20.90
             |           
            
                21.00
             |               
            
                20.90
             |                           
            
                21.00
             | 
            
                21.00
             |                     
            
                15.19
             |                                 
            
                67,320
             |            
            
                 
             |                                       
         
    
        
            | 
                8/1/2011
             | 
            
                -1.10 / -4.76%
             |             
            
                22.00
             |           
            
                22.00
             |               
            
                22.00
             |                           
            
                22.00
             | 
            
                22.00
             |                     
            
                15.91
             |                                 
            
                22,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2011
             | 
            
                -1.20 / -4.94%
             |             
            
                24.30
             |           
            
                24.30
             |               
            
                23.10
             |                           
            
                23.10
             | 
            
                23.10
             |                     
            
                16.71
             |                                 
            
                7,270
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2011
             | 
            
                -1.20 / -4.71%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                24.30
             |                           
            
                24.30
             | 
            
                24.30
             |                     
            
                17.58
             |                                 
            
                4,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2011
             | 
            
                -1.30 / -4.85%
             |             
            
                26.70
             |           
            
                26.70
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                18.44
             |                                 
            
                5,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2011
             | 
            
                +0.20 / +0.75%
             |             
            
                25.60
             |           
            
                26.80
             |               
            
                25.60
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                19.38
             |                                 
            
                3,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2011
             | 
            
                +0.60 / +2.31%
             |             
            
                26.80
             |           
            
                26.80
             |               
            
                26.60
             |                           
            
                26.60
             | 
            
                26.60
             |                     
            
                19.24
             |                                 
            
                2,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2011
             | 
            
                -1.10 / -4.06%
             |             
            
                27.40
             |           
            
                27.40
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                18.81
             |                                 
            
                247,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2011
             | 
            
                -0.30 / -1.09%
             |             
            
                26.50
             |           
            
                27.50
             |               
            
                26.50
             |                           
            
                27.10
             | 
            
                27.10
             |                     
            
                19.60
             |                                 
            
                390
             |            
            
                 
             |                                       
         
    
        
            | 
                7/20/2011
             | 
            
                +0.90 / +3.40%
             |             
            
                27.00
             |           
            
                27.40
             |               
            
                27.00
             |                           
            
                27.40
             | 
            
                27.40
             |                     
            
                19.82
             |                                 
            
                510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2011
             | 
            
                +1.00 / +3.92%
             |             
            
                26.70
             |           
            
                26.70
             |               
            
                26.50
             |                           
            
                26.50
             | 
            
                26.50
             |                     
            
                19.17
             |                                 
            
                600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2011
             | 
            
                +1.00 / +4.08%
             |             
            
                25.00
             |           
            
                25.50
             |               
            
                25.00
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                18.44
             |                                 
            
                410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2011
             | 
            
                -1.00 / -3.92%
             |             
            
                24.50
             |           
            
                24.50
             |               
            
                24.50
             |                           
            
                24.50
             | 
            
                24.50
             |                     
            
                17.72
             |                                 
            
                5,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/14/2011
             | 
            
                0.00 / 0.00%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                18.44
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/13/2011
             | 
            
                -0.50 / -1.92%
             |             
            
                26.10
             |           
            
                26.10
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                18.44
             |                                 
            
                3,670
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2011
             | 
            
                -1.30 / -4.76%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                18.81
             |                                 
            
                1,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2011
             | 
            
                0.00 / 0.00%
             |             
            
                27.00
             |           
            
                27.30
             |               
            
                27.00
             |                           
            
                27.30
             | 
            
                27.30
             |                     
            
                19.75
             |                                 
            
                170
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2011
             | 
            
                -0.10 / -0.36%
             |             
            
                27.40
             |           
            
                27.40
             |               
            
                27.20
             |                           
            
                27.30
             | 
            
                27.30
             |                     
            
                19.75
             |                                 
            
                80,550
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/7/2011
             | 
            
                -0.40 / -1.44%
             |             
            
                27.70
             |           
            
                27.70
             |               
            
                27.30
             |                           
            
                27.40
             | 
            
                27.40
             |                     
            
                19.82
             |                                 
            
                71,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/6/2011
             | 
            
                -0.40 / -1.42%
             |             
            
                28.90
             |           
            
                28.90
             |               
            
                27.80
             |                           
            
                27.80
             | 
            
                27.80
             |                     
            
                20.11
             |                                 
            
                59,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2011
             | 
            
                +0.20 / +0.71%
             |             
            
                28.20
             |           
            
                28.30
             |               
            
                28.10
             |                           
            
                28.20
             | 
            
                28.20
             |                     
            
                20.40
             |                                 
            
                56,400
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2011
             | 
            
                +1.10 / +4.09%
             |             
            
                26.80
             |           
            
                28.00
             |               
            
                26.80
             |                           
            
                28.00
             | 
            
                28.00
             |                     
            
                20.25
             |                                 
            
                16,160
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2011
             | 
            
                -0.10 / -0.37%
             |             
            
                26.90
             |           
            
                27.00
             |               
            
                26.00
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                19.46
             |                                 
            
                641,794
             |            
            
                 
             |                                       
         
    
        
            | 
                6/30/2011
             | 
            
                0.00 / 0.00%
             |             
            
                27.00
             |           
            
                27.00
             |               
            
                27.00
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                19.53
             |                                 
            
                300,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/29/2011
             | 
            
                0.00 / 0.00%
             |             
            
                27.00
             |           
            
                27.10
             |               
            
                26.80
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                19.53
             |                                 
            
                113,610
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2011
             | 
            
                -0.20 / -0.74%
             |             
            
                27.20
             |           
            
                27.30
             |               
            
                26.00
             |                           
            
                27.00
             | 
            
                27.00
             |                     
            
                19.53
             |                                 
            
                113,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2011
             | 
            
                +0.30 / +1.12%
             |             
            
                27.20
             |           
            
                27.20
             |               
            
                26.80
             |                           
            
                27.20
             | 
            
                27.20
             |                     
            
                19.67
             |                                 
            
                104,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2011
             | 
            
                -0.10 / -0.37%
             |             
            
                26.90
             |           
            
                27.00
             |               
            
                26.80
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                19.46
             |                                 
            
                114,950
             |  
            
                 
             |                                                              
             
    
         
    
    
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