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                    Closing price on 3/31/2021
                 |  |  
    
        |           
                
                    | Open | 7.80 |  
                    | High | 7.90 |  
                    | Low | 7.40 |  
                    | Volume | 36,100 |  
                    | Split-adjusted Price | 7.40 |  
                
             | 
 |  PSI Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 3/31/2021 | -0.30 / -3.90% | 7.80 | 7.90 | 7.40 | 7.40 | 7.55 | 7.40 | 36,100 |   |  
            | 3/30/2021 | +0.60 / +8.45% | 7.20 | 7.80 | 7.10 | 7.70 | 7.50 | 7.70 | 87,800 |   |  			
            | 3/29/2021 | -0.10 / -1.39% | 7.20 | 7.50 | 7.10 | 7.10 | 7.40 | 7.10 | 1,000 |   |  
            | 3/26/2021 | -0.20 / -2.70% | 7.30 | 7.30 | 7.20 | 7.20 | 7.27 | 7.20 | 15,800 |   |  			
            | 3/25/2021 | 0.00 / 0.00% | 7.40 | 7.40 | 7.30 | 7.40 | 7.34 | 7.40 | 700 |   |  
            | 3/24/2021 | -0.10 / -1.33% | 7.10 | 7.40 | 7.10 | 7.40 | 7.21 | 7.40 | 18,900 |   |  			
            | 3/23/2021 | 0.00 / 0.00% | 7.60 | 7.60 | 7.20 | 7.50 | 7.49 | 7.50 | 10,260 |   |  
            | 3/22/2021 | +0.10 / +1.35% | 7.40 | 7.60 | 7.40 | 7.50 | 7.44 | 7.50 | 11,000 |   |  			
            | 3/19/2021 | +0.10 / +1.37% | 7.30 | 7.40 | 7.00 | 7.40 | 7.29 | 7.40 | 23,400 |   |  
            | 3/18/2021 | 0.00 / 0.00% | 7.00 | 7.30 | 7.00 | 7.30 | 7.08 | 7.30 | 13,570 |   |  			
            | 3/17/2021 | +0.10 / +1.39% | 7.20 | 7.30 | 7.20 | 7.30 | 7.27 | 7.30 | 15,700 |   |  
            | 3/16/2021 | -0.20 / -2.70% | 7.20 | 7.40 | 7.20 | 7.20 | 7.21 | 7.20 | 15,075 |   |  			
            | 3/15/2021 | -0.10 / -1.33% | 7.50 | 7.50 | 7.10 | 7.40 | 7.36 | 7.40 | 1,746,600 |   |  
            | 3/12/2021 | 0.00 / 0.00% | 7.60 | 7.60 | 7.40 | 7.50 | 7.50 | 7.50 | 41,700 |   |  			
            | 3/11/2021 | +0.30 / +4.17% | 7.20 | 7.50 | 7.20 | 7.50 | 7.31 | 7.50 | 62,900 |   |  
            | 3/10/2021 | 0.00 / 0.00% | 7.10 | 7.20 | 7.00 | 7.20 | 7.08 | 7.20 | 1,224,400 |   |  			
            | 3/9/2021 | 0.00 / 0.00% | 7.10 | 7.20 | 7.10 | 7.20 | 7.13 | 7.20 | 26,500 |   |  
            | 3/8/2021 | +0.20 / +2.86% | 7.30 | 7.30 | 7.00 | 7.20 | 7.24 | 7.20 | 17,400 |   |  			
            | 3/5/2021 | +0.20 / +2.94% | 7.40 | 7.40 | 6.50 | 7.00 | 6.88 | 7.00 | 27,700 |   |  
            | 3/4/2021 | -0.20 / -2.86% | 7.00 | 7.20 | 6.40 | 6.80 | 6.94 | 6.80 | 33,300 |   |  			
            | 3/3/2021 | +0.30 / +4.48% | 6.70 | 7.00 | 6.40 | 7.00 | 6.90 | 7.00 | 30,700 |   |  
            | 3/2/2021 | +0.20 / +3.08% | 6.50 | 6.70 | 6.20 | 6.70 | 6.37 | 6.70 | 40,500 |   |  			
            | 3/1/2021 | -0.30 / -4.41% | 6.80 | 6.80 | 6.50 | 6.50 | 6.60 | 6.50 | 32,600 |   |  
            | 2/26/2021 | -0.20 / -2.86% | 7.00 | 7.00 | 6.30 | 6.80 | 6.43 | 6.80 | 33,500 |   |  			
            | 2/25/2021 | -0.10 / -1.41% | 6.80 | 7.00 | 6.80 | 7.00 | 6.92 | 7.00 | 2,100 |   |  
            | 2/24/2021 | -0.10 / -1.39% | 7.20 | 7.20 | 6.70 | 7.10 | 7.08 | 7.10 | 7,300 |   |  			
            | 2/23/2021 | +0.20 / +2.86% | 7.30 | 7.30 | 7.00 | 7.20 | 7.21 | 7.20 | 20,100 |   |  
            | 2/22/2021 | +0.60 / +9.38% | 6.40 | 7.00 | 6.30 | 7.00 | 6.88 | 7.00 | 47,400 |   |  			
            | 2/19/2021 | -0.70 / -9.86% | 7.10 | 7.10 | 6.40 | 6.40 | 6.66 | 6.40 | 500 |   |  
            | 2/18/2021 | +0.10 / +1.43% | 7.00 | 7.20 | 6.80 | 7.10 | 7.11 | 7.10 | 58,700 |   |  |