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                    Closing price on 5/10/2013
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        |           
                
                    | Open | 7.80 |  
                    | High | 7.80 |  
                    | Low | 7.70 |  
                    | Volume | 4,416 |  
                    | Split-adjusted Price | 5.35 |  
                
             | 
 |  POT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/10/2013 | -0.10 / -1.27% | 7.80 | 7.80 | 7.70 | 7.80 | 7.75 | 5.35 | 4,416 |   |  
            | 5/9/2013 | +0.10 / +1.28% | 7.90 | 7.90 | 7.40 | 7.90 | 7.70 | 5.41 | 7,188 |   |  			
            | 5/8/2013 | 0.00 / 0.00% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.35 | 7,180 |   |  
            | 5/7/2013 | 0.00 / 0.00% | 7.80 | 7.80 | 7.60 | 7.80 | 7.65 | 5.35 | 14,566 |   |  			
            | 5/6/2013 | 0.00 / 0.00% | 7.90 | 7.90 | 7.70 | 7.80 | 7.79 | 5.35 | 25,336 |   |  
            | 5/3/2013 | -0.10 / -1.27% | 7.80 | 7.80 | 7.70 | 7.80 | 7.77 | 5.35 | 3,300 |   |  			
            | 5/2/2013 | 0.00 / 0.00% | 7.90 | 7.90 | 7.90 | 7.90 | 7.90 | 5.41 | 500 |   |  
            | 4/26/2013 | -0.10 / -1.25% | 7.90 | 8.00 | 7.90 | 7.90 | 7.91 | 5.41 | 3,600 |   |  			
            | 4/25/2013 | +0.30 / +3.90% | 7.80 | 8.00 | 7.80 | 8.00 | 7.80 | 5.48 | 38,800 |   |  
            | 4/24/2013 | -0.20 / -2.53% | 7.80 | 8.00 | 7.70 | 7.70 | 7.80 | 5.28 | 800 |   |  			
            | 4/23/2013 | 0.00 / 0.00% | 8.10 | 8.20 | 7.90 | 7.90 | 7.91 | 5.41 | 19,500 |   |  
            | 4/22/2013 | +0.10 / +1.28% | 7.90 | 7.90 | 7.80 | 7.90 | 7.84 | 5.41 | 11,600 |   |  			
            | 4/18/2013 | -0.30 / -3.70% | 7.90 | 7.90 | 7.70 | 7.80 | 7.78 | 5.35 | 11,700 |   |  
            | 4/17/2013 | +0.20 / +2.53% | 7.90 | 8.10 | 7.80 | 8.10 | 7.90 | 5.55 | 14,600 |   |  			
            | 4/16/2013 | +0.20 / +2.60% | 7.90 | 7.90 | 7.80 | 7.90 | 7.83 | 5.41 | 3,600 |   |  
            | 4/15/2013 | -0.10 / -1.28% | 7.90 | 7.90 | 7.70 | 7.70 | 7.80 | 5.28 | 36,500 |   |  			
            | 4/12/2013 | -0.10 / -1.27% | 7.80 | 7.80 | 7.80 | 7.80 | 7.80 | 5.35 | 3,024 |   |  
            | 4/11/2013 | 0.00 / 0.00% | 8.00 | 8.00 | 7.90 | 7.90 | 7.91 | 5.41 | 5,200 |   |  			
            | 4/10/2013 | -0.30 / -3.66% | 8.20 | 8.20 | 7.90 | 7.90 | 7.97 | 5.41 | 52,200 |   |  
            | 4/9/2013 | +0.20 / +2.50% | 7.90 | 8.20 | 7.90 | 8.20 | 7.97 | 5.62 | 23,400 |   |  			
            | 4/8/2013 | +0.10 / +1.27% | 7.80 | 8.10 | 7.80 | 8.00 | 7.99 | 5.48 | 25,400 |   |  
            | 4/5/2013 | 0.00 / 0.00% | 8.00 | 8.20 | 7.80 | 7.90 | 7.95 | 5.41 | 14,800 |   |  			
            | 4/4/2013 | -0.30 / -3.66% | 8.40 | 8.40 | 7.90 | 7.90 | 7.99 | 5.41 | 2,600 |   |  
            | 4/3/2013 | -0.10 / -1.20% | 8.30 | 8.40 | 7.90 | 8.20 | 8.11 | 5.62 | 38,724 |   |  			
            | 4/2/2013 | +0.40 / +5.06% | 8.00 | 8.60 | 8.00 | 8.30 | 8.42 | 5.69 | 94,600 |   |  
            | 4/1/2013 | 0.00 / 0.00% | 7.90 | 7.90 | 7.90 | 7.90 | 7.90 | 5.41 | 6,600 |   |  			
            | 3/29/2013 | 0.00 / 0.00% | 7.60 | 7.90 | 7.60 | 7.90 | 7.86 | 5.41 | 3,029 |   |  
            | 3/28/2013 | 0.00 / 0.00% | 7.50 | 7.90 | 7.50 | 7.90 | 7.70 | 5.41 | 6,300 |   |  			
            | 3/27/2013 | 0.00 / 0.00% | 7.90 | 8.00 | 7.90 | 7.90 | 7.90 | 5.41 | 63,100 |   |  
            | 3/26/2013 | -0.10 / -1.25% | 7.60 | 8.00 | 7.50 | 7.90 | 7.61 | 5.41 | 17,600 |   |  |