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                    Closing price on 6/3/2019
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                    | Open | 3.10 |  
                    | High | 3.10 |  
                    | Low | 3.10 |  
                    | Volume | 0 |  
                    | Split-adjusted Price | 3.10 |  
                
             | 
 |  PSI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 6/3/2019 | 0.00 / 0.00% | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | 0 |   |  
            | 5/31/2019 | +0.20 / +6.90% | 3.00 | 3.10 | 3.00 | 3.10 | 3.06 | 3.10 | 2,000 |   |  			
            | 5/30/2019 | +0.20 / +7.41% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 3,200 |   |  
            | 5/29/2019 | -0.20 / -6.90% | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 5,100 |   |  			
            | 5/28/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 0 |   |  
            | 5/27/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 0 |   |  			
            | 5/24/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 0 |   |  
            | 5/23/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 0 |   |  			
            | 5/22/2019 | +0.10 / +3.57% | 3.00 | 3.00 | 2.90 | 2.90 | 2.91 | 2.90 | 1,500 |   |  
            | 5/21/2019 | -0.20 / -6.67% | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 200 |   |  			
            | 5/20/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  
            | 5/17/2019 | +0.10 / +3.45% | 2.70 | 3.00 | 2.70 | 3.00 | 2.96 | 3.00 | 5,400 |   |  			
            | 5/16/2019 | +0.20 / +7.41% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 4,400 |   |  
            | 5/15/2019 | -0.10 / -3.57% | 2.60 | 3.00 | 2.60 | 2.70 | 2.70 | 2.70 | 12,000 |   |  			
            | 5/14/2019 | -0.10 / -3.45% | 2.90 | 2.90 | 2.70 | 2.80 | 2.71 | 2.80 | 4,300 |   |  
            | 5/13/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 0 |   |  			
            | 5/10/2019 | -0.10 / -3.33% | 2.70 | 2.90 | 2.70 | 2.90 | 2.72 | 2.90 | 1,100 |   |  
            | 5/9/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 5/8/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  
            | 5/7/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 5/6/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  
            | 5/3/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  			
            | 5/2/2019 | +0.10 / +3.45% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 1,000 |   |  
            | 4/26/2019 | +0.10 / +3.57% | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2.90 | 2,100 |   |  			
            | 4/25/2019 | 0.00 / 0.00% | 2.90 | 2.90 | 2.80 | 2.80 | 2.81 | 2.80 | 1,600 |   |  
            | 4/24/2019 | 0.00 / 0.00% | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 0 |   |  			
            | 4/23/2019 | +0.10 / +3.70% | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 100 |   |  
            | 4/22/2019 | -0.30 / -10.00% | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 2.70 | 100 |   |  			
            | 4/19/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  
            | 4/18/2019 | 0.00 / 0.00% | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 0 |   |  |