|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           2011 
            |  
         
           36.37 
            |  
         
           30.54 
            |  
         
           -5.83 
            |  
         
           -16.03% 
            |  
      
|  
           2012 
            |  
         
           30.54 
            |  
         
           28.16 
            |  
         
           -2.38 
            |  
         
           -7.79% 
            |  
      
|  
           2013 
            |  
         
           28.16 
            |  
         
           47.05 
            |  
         
           18.89 
            |  
         
           67.08% 
            |  
      
|  
           2014 
            |  
         
           47.05 
            |  
         
           44.55 
            |  
         
           -2.50 
            |  
         
           -5.31% 
            |  
      
|  
           2015 
            |  
        
           44.55 
            |  
         
           42.65 
            |  
         
           -1.90 
            |  
         
           -4.26% 
            |  
      
|  
           2016 
            |  
        
           42.65 
            |  
         
           35.21 
            |  
         
           -7.44 
            |  
         
           -17.44% 
            |  
      
|  
           2017 
            |  
         
           35.21 
            |  
         
           57.14 
            |  
         
           21.93 
            |  
         
           62.28% 
            |  
      
|  
           2018 
            |  
         
           57.14 
            |  
         
           61.08 
            |  
         
           3.94 
            |  
         
           6.90% 
            |  
      
|  
           2019 
            |  
         
           61.08 
            |  
         
           92.25 
            |  
         
           31.17 
            |  
         
           51.03% 
            |  
      
|  
           2020 
            |  
         
           92.25 
            |  
         
           104.22 
            |  
         
           11.97 
            |  
         
           12.98% 
            |  
      
|  
           2021 
            |  
         
           104.22 
            |  
         
           160.09 
            |  
         
           55.87 
            |  
         
           53.61% 
            |  
      
|  
           2022 
            |  
         
           160.09 
            |  
         
           216.17 
            |  
         
           56.08 
            |  
         
           35.03% 
            |  
      
|  
           2023 
            |  
         
           216.17 
            |  
         
           227.62 
            |  
         
           11.45 
            |  
         
           5.30% 
            |  
      
|  
           2024 
            |  
         
           227.62 
            |  
         
           326.51 
            |  
         
           98.89 
            |  
         
           43.45% 
            |