|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           2006 
            |  
         
           47588.76 
            |  
         
           63011.74 
            |  
         
           15422.98 
            |  
         
           32.41% 
            |  
      
|  
           2007 
            |  
         
           63011.74 
            |  
         
           78669.68 
            |  
         
           15657.94 
            |  
         
           24.85% 
            |  
      
|  
           2008 
            |  
         
           78669.68 
            |  
         
           12549.53 
            |  
         
           -66120.15 
            |  
         
           -84.05% 
            |  
      
|  
           2009 
            |  
         
           12549.53 
            |  
         
           23855.96 
            |  
         
           11336.43 
            |  
         
           90.33% 
            |  
      
|  
           2010 
            |  
         
           23855.96 
            |  
         
           21980.58 
            |  
         
           -1905.38 
            |  
         
           -7.98% 
            |  
      
|  
           2011 
            |  
         
           21980.58 
            |  
         
           19341.50 
            |  
         
           -2639.08 
            |  
         
           -12.01% 
            |  
      
|  
           2012 
            |  
         
           19341.50 
            |  
         
           25375.38 
            |  
         
           6033.88 
            |  
         
           31.20% 
            |  
      
|  
           2013 
            |  
         
           25375.38 
            |  
         
           31291.82 
            |  
         
           5916.44 
            |  
         
           23.32% 
            |  
      
|  
           2014 
            |  
         
           31291.82 
            |  
         
           30283.31 
            |  
         
           -1008.51 
            |  
         
           -3.22% 
            |  
      
|  
           2015 
            |  
        
           30283.31 
            |  
         
           30276.49 
            |  
         
           -6.82 
            |  
         
           -0.02% 
            |  
      
|  
           2016 
            |  
        
           30276.49 
            |  
         
           29710.63 
            |  
         
           -565.86 
            |  
         
           -1.87% 
            |  
      
|  
           2017 
            |  
         
           29710.63 
            |  
         
           39557.44 
            |  
         
           9846.81 
            |  
         
           33.14% 
            |  
      
|  
           2018 
            |  
        
           39557.44 
            |  
         
           34636.37 
            |  
         
           -4921.07 
            |  
         
           -12.44% 
            |  
      
|  
           2019 
            |  
        
           34636.37 
            |  
         
           47546.89 
            |  
         
           12910.52 
            |  
         
           37.27% 
            |  
      
|  
           2020 
            |  
        
           47546.89 
            |  
         
           43077.92 
            |  
         
           -4468.97 
            |  
         
           -9.40% 
            |  
      
|  
           2021 
            |  
        
           43077.92 
            |  
         
           52157.90 
            |  
         
           9079.98 
            |  
         
           21.08% 
            |  
      
|  
           2022 
            |  
        
           52157.90 
            |  
         
           50284.40 
            |  
         
           -1873.50 
            |  
         
           -3.59% 
            |  
      
|  
           2023 
            |  
        
           50284.40 
            |  
         
           59309.10 
            |  
         
           9024.70 
            |  
         
           17.95% 
            |  
      
|  
           2024 
            |  
        
           50309.10 
            |  
         
           62020.50 
            |  
         
           2711.40 
            |  
         
           4.57% 
            |