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                    Closing price on 10/2/2012
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                    | Open | 7.40 |  
                    | High | 7.40 |  
                    | Low | 7.40 |  
                    | Volume | 3,300 |  
                    | Split-adjusted Price | 4.82 |  
                
             | 
 |  POT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/2/2012 | +0.10 / +1.37% | 7.40 | 7.40 | 7.40 | 7.40 | 7.40 | 4.82 | 3,300 |   |  
            | 10/1/2012 | -0.20 / -2.67% | 7.50 | 7.50 | 7.30 | 7.30 | 7.33 | 4.75 | 13,000 |   |  			
            | 9/28/2012 | -0.10 / -1.32% | 7.60 | 8.00 | 7.50 | 7.50 | 7.59 | 4.88 | 16,500 |   |  
            | 9/27/2012 | -0.20 / -2.56% | 7.70 | 7.70 | 7.60 | 7.60 | 7.66 | 4.95 | 3,200 |   |  			
            | 9/26/2012 | 0.00 / 0.00% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.08 | 1,200 |   |  
            | 9/25/2012 | 0.00 / 0.00% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.08 | 1,000 |   |  			
            | 9/24/2012 | -0.30 / -3.70% | 8.10 | 8.10 | 7.60 | 7.80 | 7.76 | 5.08 | 12,000 |   |  
            | 9/21/2012 | +0.40 / +5.19% | 8.10 | 8.10 | 8.10 | 8.10 | 8.10 | 5.27 | 100 |   |  			
            | 9/20/2012 | -0.10 / -1.28% | 7.80 | 7.80 | 7.50 | 7.70 | 7.66 | 5.01 | 10,500 |   |  
            | 9/19/2012 | 0.00 / 0.00% | 7.80 | 7.90 | 7.80 | 7.80 | 7.81 | 5.08 | 16,740 |   |  			
            | 9/18/2012 | -0.20 / -2.50% | 8.00 | 8.30 | 7.80 | 7.80 | 7.81 | 5.08 | 46,100 |   |  
            | 9/17/2012 | -0.30 / -3.61% | 8.10 | 8.10 | 8.00 | 8.00 | 8.05 | 5.21 | 3,000 |   |  			
            | 9/14/2012 | +0.10 / +1.22% | 8.50 | 8.50 | 8.30 | 8.30 | 8.44 | 5.40 | 8,800 |   |  
            | 9/13/2012 | +0.50 / +6.49% | 7.80 | 8.20 | 7.80 | 8.20 | 7.98 | 5.34 | 7,700 |   |  			
            | 9/12/2012 | -0.10 / -1.28% | 7.90 | 8.20 | 7.70 | 7.70 | 7.84 | 5.01 | 19,700 |   |  
            | 9/11/2012 | -0.20 / -2.50% | 7.90 | 7.90 | 7.60 | 7.80 | 7.75 | 5.08 | 19,900 |   |  			
            | 9/10/2012 | -0.50 / -5.88% | 8.60 | 8.60 | 8.00 | 8.00 | 8.05 | 5.21 | 36,400 |   |  
            | 9/7/2012 | +0.40 / +4.94% | 8.20 | 8.50 | 8.20 | 8.50 | 8.40 | 5.53 | 1,800 |   |  			
            | 9/6/2012 | -0.20 / -2.41% | 8.20 | 8.20 | 8.00 | 8.10 | 8.10 | 5.27 | 28,200 |   |  
            | 9/5/2012 | -0.40 / -4.60% | 8.40 | 8.50 | 8.30 | 8.30 | 8.33 | 5.40 | 26,580 |   |  			
            | 9/4/2012 | 0.00 / 0.00% | 8.80 | 8.90 | 8.70 | 8.70 | 8.79 | 5.66 | 31,697 |   |  
            | 8/31/2012 | -0.10 / -1.14% | 8.50 | 8.80 | 8.50 | 8.70 | 8.62 | 5.66 | 28,800 |   |  			
            | 8/30/2012 | +0.20 / +2.33% | 8.60 | 8.90 | 8.60 | 8.80 | 8.77 | 5.73 | 9,300 |   |  
            | 8/29/2012 | +0.50 / +6.17% | 8.40 | 8.60 | 8.10 | 8.60 | 8.49 | 5.60 | 32,700 |   |  			
            | 8/28/2012 | -0.20 / -2.41% | 8.50 | 8.50 | 7.80 | 8.10 | 8.07 | 5.27 | 38,700 |   |  
            | 8/27/2012 | -0.50 / -5.68% | 8.90 | 8.90 | 8.30 | 8.30 | 8.36 | 5.40 | 120,300 |   |  			
            | 8/24/2012 | -0.20 / -2.22% | 8.50 | 9.30 | 8.50 | 8.80 | 8.90 | 5.73 | 253,800 |   |  
            | 8/23/2012 | -0.60 / -6.25% | 9.50 | 9.50 | 9.00 | 9.00 | 9.02 | 5.86 | 68,100 |   |  			
            | 8/22/2012 | -0.70 / -6.80% | 9.60 | 10.30 | 9.60 | 9.60 | 9.76 | 6.25 | 207,200 |   |  
            | 8/21/2012 | -0.70 / -6.36% | 10.90 | 10.90 | 10.30 | 10.30 | 10.36 | 6.71 | 161,600 |   |  |