| 
    
        
            | 
                    Closing price on 6/8/2012
                 |  |  
    
        |           
                
                    | Open | 8.60 |  
                    | High | 9.00 |  
                    | Low | 8.50 |  
                    | Volume | 19,200 |  
                    | Split-adjusted Price | 9.00 |  
                
             | 
 |  SDU Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/8/2012 | +0.10 / +1.12% | 8.60 | 9.00 | 8.50 | 9.00 | 9.00 | 9.00 | 19,200 |   |  
            | 6/7/2012 | +0.20 / +2.30% | 8.50 | 8.90 | 8.10 | 8.90 | 8.90 | 8.90 | 36,000 |   |  			
            | 6/6/2012 | +0.10 / +1.16% | 8.50 | 8.70 | 8.00 | 8.70 | 8.70 | 8.70 | 3,700 |   |  
            | 6/5/2012 | -0.10 / -1.15% | 8.10 | 8.60 | 8.10 | 8.60 | 8.60 | 8.60 | 700 |   |  			
            | 6/4/2012 | 0.00 / 0.00% | 8.70 | 8.70 | 8.70 | 8.70 | 8.70 | 8.70 | 100 |   |  
            | 6/1/2012 | +0.20 / +2.35% | 8.70 | 8.70 | 8.00 | 8.70 | 8.70 | 8.70 | 10,600 |   |  			
            | 5/31/2012 | -0.20 / -2.30% | 8.20 | 8.50 | 8.10 | 8.50 | 8.50 | 8.50 | 7,200 |   |  
            | 5/30/2012 | +0.20 / +2.35% | 8.70 | 8.70 | 8.60 | 8.70 | 8.70 | 8.70 | 1,800 |   |  			
            | 5/29/2012 | -0.40 / -4.49% | 8.10 | 8.70 | 8.00 | 8.50 | 8.50 | 8.50 | 6,100 |   |  
            | 5/28/2012 | +0.20 / +2.30% | 8.50 | 9.00 | 8.10 | 8.90 | 8.90 | 8.90 | 2,900 |   |  			
            | 5/25/2012 | +0.40 / +4.82% | 8.70 | 8.80 | 8.40 | 8.70 | 8.70 | 8.70 | 6,200 |   |  
            | 5/24/2012 | -0.60 / -6.74% | 8.50 | 8.50 | 8.30 | 8.30 | 8.30 | 8.30 | 7,400 |   |  			
            | 5/23/2012 | -0.60 / -6.32% | 9.10 | 9.10 | 8.90 | 8.90 | 8.90 | 8.90 | 8,300 |   |  
            | 5/22/2012 | 0.00 / 0.00% | 9.70 | 9.70 | 9.20 | 9.50 | 9.50 | 9.50 | 14,100 |   |  			
            | 5/21/2012 | +0.60 / +6.74% | 8.90 | 9.50 | 8.90 | 9.50 | 9.50 | 9.50 | 4,800 |   |  
            | 5/18/2012 | -0.60 / -6.32% | 9.00 | 9.00 | 8.90 | 8.90 | 8.90 | 8.90 | 19,500 |   |  			
            | 5/17/2012 | -0.70 / -6.86% | 9.60 | 9.70 | 9.50 | 9.50 | 9.50 | 9.50 | 11,300 |   |  
            | 5/16/2012 | -0.70 / -6.42% | 10.20 | 10.20 | 10.20 | 10.20 | 10.20 | 10.20 | 21,900 |   |  			
            | 5/15/2012 | -0.80 / -6.84% | 11.60 | 11.60 | 10.90 | 10.90 | 10.90 | 10.90 | 5,400 |   |  
            | 5/14/2012 | -0.80 / -6.40% | 13.00 | 13.00 | 11.70 | 11.70 | 11.70 | 11.70 | 1,000 |   |  			
            | 5/11/2012 | 0.00 / 0.00% | 12.60 | 12.60 | 11.70 | 12.50 | 12.50 | 12.50 | 29,800 |   |  
            | 5/10/2012 | +0.80 / +6.84% | 12.50 | 12.50 | 12.40 | 12.50 | 12.50 | 12.50 | 59,900 |   |  			
            | 5/9/2012 | +0.70 / +6.36% | 11.60 | 11.70 | 11.50 | 11.70 | 11.70 | 11.70 | 78,200 |   |  
            | 5/8/2012 | +0.70 / +6.80% | 10.80 | 11.00 | 10.80 | 11.00 | 11.00 | 11.00 | 135,600 |   |  			
            | 5/7/2012 | +0.50 / +5.10% | 10.20 | 10.30 | 10.10 | 10.30 | 10.30 | 10.30 | 47,700 |   |  
            | 5/4/2012 | +0.50 / +5.38% | 9.30 | 9.80 | 9.10 | 9.80 | 9.80 | 9.80 | 23,700 |   |  			
            | 5/3/2012 | +0.10 / +1.09% | 9.30 | 9.30 | 9.10 | 9.30 | 9.30 | 9.30 | 7,000 |   |  
            | 5/2/2012 | -0.40 / -4.17% | 9.90 | 9.90 | 9.20 | 9.20 | 9.20 | 9.20 | 3,500 |   |  			
            | 4/27/2012 | -0.10 / -1.03% | 9.50 | 9.70 | 9.50 | 9.60 | 9.60 | 9.60 | 6,100 |   |  
            | 4/26/2012 | -0.40 / -3.96% | 9.80 | 9.80 | 9.30 | 9.70 | 9.70 | 9.70 | 8,900 |   |  |