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                    Closing price on 3/8/2016
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        |           
                
                    | Open | 6.30 |  
                    | High | 6.40 |  
                    | Low | 6.20 |  
                    | Volume | 188,100 |  
                    | Split-adjusted Price | 6.40 |  
                
             | 
 |  WSS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/8/2016 | -0.10 / -1.54% | 6.30 | 6.40 | 6.20 | 6.40 | 6.23 | 6.40 | 188,100 |   |  
            | 3/7/2016 | 0.00 / 0.00% | 6.40 | 6.50 | 6.10 | 6.50 | 6.25 | 6.50 | 169,200 |   |  			
            | 3/4/2016 | 0.00 / 0.00% | 6.40 | 6.50 | 6.10 | 6.50 | 6.29 | 6.50 | 82,100 |   |  
            | 3/3/2016 | 0.00 / 0.00% | 6.50 | 6.50 | 6.30 | 6.50 | 6.42 | 6.50 | 115,200 |   |  			
            | 3/2/2016 | -0.20 / -2.99% | 6.60 | 6.60 | 6.50 | 6.50 | 6.51 | 6.50 | 110,600 |   |  
            | 3/1/2016 | -0.30 / -4.29% | 6.90 | 6.90 | 6.70 | 6.70 | 6.80 | 6.70 | 116,300 |   |  			
            | 2/29/2016 | +0.10 / +1.45% | 6.80 | 7.00 | 6.80 | 7.00 | 6.81 | 7.00 | 1,012,100 |   |  
            | 2/26/2016 | 0.00 / 0.00% | 6.90 | 7.00 | 6.80 | 6.90 | 6.89 | 6.90 | 52,900 |   |  			
            | 2/25/2016 | -0.10 / -1.43% | 7.00 | 7.00 | 6.90 | 6.90 | 7.00 | 6.90 | 384,600 |   |  
            | 2/24/2016 | -0.30 / -4.11% | 7.20 | 7.20 | 7.00 | 7.00 | 7.01 | 7.00 | 85,000 |   |  			
            | 2/23/2016 | -0.10 / -1.35% | 7.60 | 7.60 | 7.20 | 7.30 | 7.36 | 7.30 | 90,000 |   |  
            | 2/22/2016 | 0.00 / 0.00% | 7.30 | 7.40 | 7.20 | 7.40 | 7.29 | 7.40 | 50,500 |   |  			
            | 2/19/2016 | +0.30 / +4.23% | 7.10 | 7.40 | 6.80 | 7.40 | 7.03 | 7.40 | 194,700 |   |  
            | 2/18/2016 | -0.30 / -4.05% | 7.40 | 7.40 | 7.00 | 7.10 | 7.12 | 7.10 | 86,200 |   |  			
            | 2/17/2016 | -0.20 / -2.63% | 7.50 | 7.50 | 7.40 | 7.40 | 7.42 | 7.40 | 40,600 |   |  
            | 2/16/2016 | 0.00 / 0.00% | 7.60 | 7.60 | 7.50 | 7.60 | 7.52 | 7.60 | 65,900 |   |  			
            | 2/15/2016 | -0.10 / -1.30% | 7.70 | 7.70 | 7.50 | 7.60 | 7.68 | 7.60 | 4,400 |   |  
            | 2/5/2016 | +0.10 / +1.32% | 7.50 | 7.70 | 7.50 | 7.70 | 7.50 | 7.70 | 15,000 |   |  			
            | 2/4/2016 | 0.00 / 0.00% | 7.50 | 7.60 | 7.50 | 7.60 | 7.60 | 7.60 | 18,100 |   |  
            | 2/3/2016 | 0.00 / 0.00% | 7.50 | 7.60 | 7.50 | 7.60 | 7.50 | 7.60 | 47,000 |   |  			
            | 2/2/2016 | -0.10 / -1.30% | 7.60 | 7.90 | 7.40 | 7.60 | 7.70 | 7.60 | 968,000 |   |  
            | 2/1/2016 | +0.30 / +4.05% | 7.40 | 7.70 | 7.30 | 7.70 | 7.30 | 7.70 | 107,500 |   |  			
            | 1/29/2016 | 0.00 / 0.00% | 7.40 | 7.40 | 7.10 | 7.40 | 7.23 | 7.40 | 8,900 |   |  
            | 1/28/2016 | 0.00 / 0.00% | 7.30 | 7.40 | 7.20 | 7.40 | 7.40 | 7.40 | 14,000 |   |  			
            | 1/27/2016 | 0.00 / 0.00% | 7.30 | 7.40 | 7.30 | 7.40 | 7.40 | 7.40 | 2,516,850 |   |  
            | 1/26/2016 | 0.00 / 0.00% | 7.40 | 7.40 | 7.20 | 7.40 | 7.37 | 7.40 | 13,600 |   |  			
            | 1/25/2016 | 0.00 / 0.00% | 7.30 | 7.40 | 7.30 | 7.40 | 7.39 | 7.40 | 994,100 |   |  
            | 1/22/2016 | 0.00 / 0.00% | 7.30 | 7.40 | 7.30 | 7.40 | 7.30 | 7.40 | 11,700 |   |  			
            | 1/21/2016 | 0.00 / 0.00% | 7.30 | 7.40 | 7.10 | 7.40 | 7.23 | 7.40 | 21,300 |   |  
            | 1/20/2016 | 0.00 / 0.00% | 7.30 | 7.40 | 7.30 | 7.40 | 7.40 | 7.40 | 19,800 |   |  |