|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           2008 
            |  
         
           12.40 
            |  
         
           10.20 
            |  
         
           -2.20 
            |  
         
           -17.74% 
            |  
      
|  
           2009 
            |  
         
           10.20 
            |  
         
           12.09 
            |  
         
           1.89 
            |  
         
           18.53% 
            |  
      
|  
           2010 
            |  
         
           12.09 
            |  
         
           19.00 
            |  
         
           6.91 
            |  
         
           57.15% 
            |  
      
|  
           2011 
            |  
         
           19.00 
            |  
         
           19.12 
            |  
         
           0.12 
            |  
         
           0.63% 
            |  
      
|  
           2012 
            |  
         
           19.12 
            |  
         
           25.49 
            |  
         
           6.37 
            |  
         
           33.32% 
            |  
      
|  
           2013 
            |  
         
           25.49 
            |  
         
           27.65 
            |  
         
           2.16 
            |  
         
           8.47% 
            |  
      
|  
           2014 
            |  
         
           27.65 
            |  
         
           20.29 
            |  
         
           -7.36 
            |  
         
           -26.62% 
            |  
      
|  
           2015 
            |  
        
           20.29 
            |  
         
           19.11 
            |  
         
           -1.18 
            |  
         
           -5.82% 
            |  
      
|  
           2016 
            |  
        
           19.11 
            |  
         
           18.34 
            |  
         
           -0.77 
            |  
         
           -4.03% 
            |  
      
|  
           2017 
            |  
        
           18.34 
            |  
         
           9.49 
            |  
         
           -8.85 
            |  
         
           -48.26% 
            |  
      
|  
           2018 
            |  
        
           9.49 
            |  
         
           9.01 
            |  
         
           -0.48 
            |  
         
           -5.06% 
            |  
      
|  
           2019 
            |  
        
           9.01 
            |  
         
           10.28 
            |  
         
           1.27 
            |  
         
           14.10% 
            |  
      
|  
           2020 
            |  
        
           10.28 
            |  
         
           9.20 
            |  
         
           -1.08 
            |  
         
           -10.51% 
            |  
      
|  
           2021 
            |  
        
           9.20 
            |  
         
           11.02 
            |  
         
           1.82 
            |  
         
           19.78% 
            |  
      
|  
           2022 
            |  
        
           11.02 
            |  
         
           8.15 
            |  
         
           -2.87 
            |  
         
           -26.04% 
            |  
      
|  
           2023 
            |  
        
           8.15 
            |  
         
           8.58 
            |  
         
           0.43 
            |  
         
           5.28% 
            |  
      
|  
           2024 
            |  
        
           8.58 
            |  
         
           9.57 
            |  
         
           0.99 
            |  
         
           11.54% 
            |