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            | 
                    Closing price on 2/1/2013
                 |  |  
    
        |           
                
                    | Open | 8.00 |  
                    | High | 8.40 |  
                    | Low | 8.00 |  
                    | Volume | 71,000 |  
                    | Split-adjusted Price | 5.47 |  
                
             | 
 |  POT Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 2/1/2013 | +0.80 / +10.53% | 8.00 | 8.40 | 8.00 | 8.40 | 8.37 | 5.47 | 71,000 |   |  
            | 1/31/2013 | -0.20 / -2.56% | 7.80 | 7.80 | 7.50 | 7.60 | 7.58 | 4.95 | 40,600 |   |  			
            | 1/30/2013 | -0.20 / -2.50% | 7.80 | 8.20 | 7.80 | 7.80 | 7.90 | 5.08 | 14,900 |   |  
            | 1/29/2013 | +0.10 / +1.27% | 7.80 | 8.00 | 7.50 | 8.00 | 7.73 | 5.21 | 15,900 |   |  			
            | 1/28/2013 | -0.30 / -3.66% | 7.90 | 8.20 | 7.90 | 7.90 | 8.07 | 5.14 | 9,500 |   |  
            | 1/25/2013 | 0.00 / 0.00% | 8.10 | 8.20 | 8.10 | 8.20 | 8.13 | 5.34 | 4,300 |   |  			
            | 1/24/2013 | +0.30 / +3.80% | 8.10 | 8.20 | 8.10 | 8.20 | 8.18 | 5.34 | 3,000 |   |  
            | 1/23/2013 | 0.00 / 0.00% | 8.00 | 8.00 | 7.90 | 7.90 | 7.99 | 5.14 | 18,300 |   |  			
            | 1/22/2013 | -0.70 / -8.14% | 8.20 | 8.20 | 7.90 | 7.90 | 8.04 | 5.14 | 23,100 |   |  
            | 1/21/2013 | +0.10 / +1.18% | 8.40 | 8.60 | 8.20 | 8.60 | 8.22 | 5.60 | 9,300 |   |  			
            | 1/18/2013 | +0.10 / +1.19% | 8.30 | 8.50 | 8.30 | 8.50 | 8.37 | 5.53 | 13,400 |   |  
            | 1/17/2013 | 0.00 / 0.00% | 8.70 | 8.70 | 8.30 | 8.40 | 8.46 | 5.47 | 39,200 |   |  			
            | 1/16/2013 | -0.60 / -6.67% | 9.00 | 9.20 | 8.40 | 8.40 | 8.81 | 5.47 | 39,000 |   |  
            | 1/15/2013 | +0.70 / +8.43% | 8.30 | 9.00 | 8.20 | 9.00 | 8.71 | 5.86 | 37,700 |   |  			
            | 1/14/2013 | +0.20 / +2.47% | 7.90 | 8.40 | 7.90 | 8.30 | 8.19 | 5.40 | 10,600 |   |  
            | 1/11/2013 | -0.20 / -2.41% | 8.10 | 8.20 | 8.10 | 8.10 | 8.10 | 5.27 | 13,400 |   |  			
            | 1/10/2013 | +0.20 / +2.47% | 8.00 | 8.30 | 8.00 | 8.30 | 8.08 | 5.40 | 9,504 |   |  
            | 1/9/2013 | -0.20 / -2.41% | 8.30 | 8.70 | 7.90 | 8.10 | 8.21 | 5.27 | 52,129 |   |  			
            | 1/8/2013 | +0.10 / +1.22% | 7.90 | 8.30 | 7.90 | 8.30 | 8.23 | 5.40 | 27,340 |   |  
            | 1/7/2013 | -0.60 / -6.82% | 8.70 | 8.70 | 8.20 | 8.20 | 8.44 | 5.34 | 29,200 |   |  			
            | 1/4/2013 | 0.00 / 0.00% | 8.80 | 8.90 | 8.40 | 8.80 | 8.63 | 5.73 | 14,900 |   |  
            | 1/3/2013 | -0.60 / -6.38% | 9.00 | 9.10 | 8.80 | 8.80 | 8.86 | 5.73 | 46,900 |   |  			
            | 1/2/2013 | +0.40 / +4.44% | 8.80 | 9.40 | 8.80 | 9.40 | 9.15 | 6.12 | 20,100 |   |  
            | 12/28/2012 | +0.30 / +3.45% | 8.50 | 9.20 | 8.50 | 9.00 | 8.88 | 5.86 | 57,500 |   |  			
            | 12/27/2012 | 0.00 / 0.00% | 8.60 | 8.80 | 8.60 | 8.70 | 8.67 | 5.66 | 86,500 |   |  
            | 12/26/2012 | -0.10 / -1.14% | 8.40 | 8.80 | 8.10 | 8.70 | 8.52 | 5.66 | 42,500 |   |  			
            | 12/25/2012 | -0.20 / -2.22% | 9.00 | 9.00 | 8.50 | 8.80 | 8.74 | 5.73 | 34,140 |   |  
            | 12/24/2012 | +0.30 / +3.45% | 9.30 | 9.30 | 8.70 | 9.00 | 9.08 | 5.86 | 137,800 |   |  			
            | 12/21/2012 | +0.50 / +6.10% | 8.70 | 8.70 | 8.70 | 8.70 | 8.70 | 5.66 | 153,100 |   |  
            | 12/20/2012 | +0.50 / +6.49% | 8.20 | 8.20 | 8.20 | 8.20 | 8.20 | 5.34 | 8,900 |   |  |