| 
                 
                    Closing price on 8/1/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.30 | 
                 
                
                    | High | 
                    9.30 | 
                 
                
                    | Low | 
                    8.80 | 
                     
                
                    | Volume | 
                    45,900 | 
                                 
                
                    | Split-adjusted Price | 
                    2.07 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PPS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/1/2012
             | 
            
                -0.30 / -3.30%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                8.80
             |                           
            
                8.80
             | 
            
                8.80
             |                     
            
                2.07
             |                                 
            
                45,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2012
             | 
            
                +0.20 / +2.25%
             |             
            
                9.20
             |           
            
                9.20
             |               
            
                8.90
             |                           
            
                9.10
             | 
            
                9.10
             |                     
            
                2.15
             |                                 
            
                9,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2012
             | 
            
                +0.10 / +1.14%
             |             
            
                8.90
             |           
            
                9.00
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                2.10
             |                                 
            
                57,800
             |            
            
                 
             |                                       
         
    
        
            | 
                7/27/2012
             | 
            
                -0.40 / -4.35%
             |             
            
                9.20
             |           
            
                9.20
             |               
            
                8.80
             |                           
            
                8.80
             | 
            
                8.80
             |                     
            
                2.07
             |                                 
            
                27,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/26/2012
             | 
            
                +0.20 / +2.22%
             |             
            
                9.10
             |           
            
                9.20
             |               
            
                9.10
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                2.17
             |                                 
            
                9,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/25/2012
             | 
            
                -0.20 / -2.17%
             |             
            
                8.90
             |           
            
                9.20
             |               
            
                8.70
             |                           
            
                9.00
             | 
            
                9.00
             |                     
            
                2.12
             |                                 
            
                44,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/24/2012
             | 
            
                -0.60 / -6.12%
             |             
            
                9.60
             |           
            
                9.60
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.20
             |                     
            
                2.17
             |                                 
            
                104,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/23/2012
             | 
            
                -0.20 / -2.00%
             |             
            
                10.00
             |           
            
                10.00
             |               
            
                9.70
             |                           
            
                9.80
             | 
            
                9.80
             |                     
            
                2.31
             |                                 
            
                17,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/20/2012
             | 
            
                -0.20 / -1.96%
             |             
            
                10.20
             |           
            
                10.60
             |               
            
                10.00
             |                           
            
                10.00
             | 
            
                10.00
             |                     
            
                2.36
             |                                 
            
                117,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/19/2012
             | 
            
                +0.70 / +7.37%
             |             
            
                9.60
             |           
            
                10.20
             |               
            
                9.30
             |                           
            
                10.20
             | 
            
                10.20
             |                     
            
                2.40
             |                                 
            
                182,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/18/2012
             | 
            
                -0.20 / -2.06%
             |             
            
                9.80
             |           
            
                9.80
             |               
            
                9.20
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                2.24
             |                                 
            
                57,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2012
             | 
            
                +0.30 / +3.19%
             |             
            
                9.30
             |           
            
                9.70
             |               
            
                9.20
             |                           
            
                9.70
             | 
            
                9.70
             |                     
            
                2.29
             |                                 
            
                59,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2012
             | 
            
                -0.40 / -4.08%
             |             
            
                9.70
             |           
            
                9.90
             |               
            
                9.30
             |                           
            
                9.40
             | 
            
                9.40
             |                     
            
                2.22
             |                                 
            
                42,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2012
             | 
            
                +0.70 / +7.69%
             |             
            
                9.20
             |           
            
                9.80
             |               
            
                9.20
             |                           
            
                9.80
             | 
            
                9.80
             |                     
            
                2.31
             |                                 
            
                113,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2012
             | 
            
                +0.20 / +2.25%
             |             
            
                9.10
             |           
            
                9.30
             |               
            
                8.70
             |                           
            
                9.10
             | 
            
                9.10
             |                     
            
                2.15
             |                                 
            
                83,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/11/2012
             | 
            
                +0.20 / +2.30%
             |             
            
                8.80
             |           
            
                8.90
             |               
            
                8.80
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                2.10
             |                                 
            
                23,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.40
             |           
            
                8.90
             |               
            
                8.40
             |                           
            
                8.70
             | 
            
                8.70
             |                     
            
                2.05
             |                                 
            
                117,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2012
             | 
            
                -0.70 / -7.45%
             |             
            
                9.00
             |           
            
                9.00
             |               
            
                8.70
             |                           
            
                8.70
             | 
            
                8.70
             |                     
            
                2.05
             |                                 
            
                52,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2012
             | 
            
                -0.10 / -1.05%
             |             
            
                9.40
             |           
            
                9.70
             |               
            
                9.30
             |                           
            
                9.40
             | 
            
                9.40
             |                     
            
                2.22
             |                                 
            
                24,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2012
             | 
            
                +0.60 / +6.74%
             |             
            
                8.90
             |           
            
                9.50
             |               
            
                8.90
             |                           
            
                9.50
             | 
            
                9.50
             |                     
            
                2.24
             |                                 
            
                71,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2012
             | 
            
                -0.50 / -5.32%
             |             
            
                9.60
             |           
            
                9.60
             |               
            
                8.90
             |                           
            
                8.90
             | 
            
                8.90
             |                     
            
                2.10
             |                                 
            
                89,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2012
             | 
            
                -0.20 / -2.08%
             |             
            
                9.80
             |           
            
                9.80
             |               
            
                9.30
             |                           
            
                9.40
             | 
            
                9.40
             |                     
            
                2.22
             |                                 
            
                74,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2012
             | 
            
                -0.70 / -6.80%
             |             
            
                10.10
             |           
            
                10.10
             |               
            
                9.60
             |                           
            
                9.60
             | 
            
                9.60
             |                     
            
                2.26
             |                                 
            
                88,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2012
             | 
            
                -0.20 / -1.90%
             |             
            
                10.60
             |           
            
                10.60
             |               
            
                10.00
             |                           
            
                10.30
             | 
            
                10.30
             |                     
            
                2.43
             |                                 
            
                54,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2012
             | 
            
                -1.10 / -9.48%
             |             
            
                10.70
             |           
            
                10.80
             |               
            
                10.00
             |                           
            
                10.50
             | 
            
                10.50
             |                     
            
                2.48
             |                                 
            
                85,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2012
             | 
            
                -0.10 / -0.85%
             |             
            
                12.00
             |           
            
                12.00
             |               
            
                11.50
             |                           
            
                11.60
             | 
            
                11.60
             |                     
            
                2.40
             |                                 
            
                102,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2012
             | 
            
                -0.40 / -3.31%
             |             
            
                12.10
             |           
            
                12.10
             |               
            
                11.50
             |                           
            
                11.70
             | 
            
                11.70
             |                     
            
                2.42
             |                                 
            
                184,000
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2012
             | 
            
                -0.60 / -4.72%
             |             
            
                12.70
             |           
            
                12.70
             |               
            
                12.00
             |                           
            
                12.10
             | 
            
                12.10
             |                     
            
                2.51
             |                                 
            
                162,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2012
             | 
            
                -0.10 / -0.78%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.60
             |                           
            
                12.70
             | 
            
                12.70
             |                     
            
                2.63
             |                                 
            
                69,800
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2012
             | 
            
                0.00 / 0.00%
             |             
            
                13.00
             |           
            
                13.00
             |               
            
                12.80
             |                           
            
                12.80
             | 
            
                12.80
             |                     
            
                2.65
             |                                 
            
                39,400
             |  
            
                 
             |                                                              
             
    
         
    
    
 |