|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           1995 
            |  
         
           19.625 
            |  
         
           20.75 
                
           |  
         
           1.125 
            |  
         
           5.73% 
            |  
      
|  
           1996 
            |  
         
           20.75 
            |  
         
             25.75 
                
           |  
         
           5.00 
            |  
         
           24.10% 
            |  
      
|  
           1997 
            |  
         
           25.75 
            |  
         
           28.5625 
                
           |  
         
           2.8125 
            |  
         
           10.92% 
             |  
      
|  
           1998 
            |  
         
           28.5625 
            |  
         
           24.625 
                
           |  
         
           -3.9375 
            |  
         
           -13.79% 
            |  
      
|  
           1999 
            |  
         
           24.625 
            |  
         
           24.75 
                
           |  
         
           0.125 
            |  
         
           0.51% 
             |  
      
|  
           2000 
            |  
         
           24.75 
            |  
         
           28.5625 
                
           |  
         
           3.8125 
            |  
         
           15.40% 
            |  
      
|  
           2001 
            |  
         
           28.5625 
            |  
         
           29.85 
            |  
         
           1.2875 
            |  
         
           4.51% 
            |  
      
|  
           2002 
            |  
         
           29.85 
            |  
         
           31.94 
            |  
         
           2.09 
            |  
         
           7.00% 
            |  
      
|  
           2003 
            |  
         
           31.94 
            |  
         
           38.90 
            |  
         
           6.96 
            |  
         
           21.79% 
            |  
      
|  
           2004 
            |  
         
           38.90 
            |  
         
           43.20 
            |  
         
           4.30 
             |  
         
           11.05% 
            |  
      
|  
           2005 
            |  
         
           43.20 
            |  
         
           42.85 
            |  
         
           -0.35 
            |  
         
           -0.81% 
            |  
      
|  
           2006 
            |  
         
           42.85 
            |  
         
           49.14 
            |  
         
           6.29 
             |  
         
           14.68% 
            |  
      
|  
           2007 
            |  
         
           49.14 
            |  
         
           28.81 
            |  
         
           -20.33 
            |  
         
           -41.37% 
            |  
      
|  
           2008 
            |  
         
           28.81 
            |  
         
           22.83 
            |  
         
           -5.98 
            |  
         
           -20.76% 
            |  
      
|  
           2009 
            |  
         
           22.83 
            |  
         
           32.01 
            |  
         
           9.18 
            |  
         
           40.21% 
            |  
      
|  
           2010 
            |  
         
           32.01 
            |  
         
           31.92 
            |  
         
           -0.09 
            |  
         
           -0.28% 
            |  
      
|  
           2011 
            |  
         
           31.92 
            |  
         
           30.88 
            |  
         
           -1.04 
            |  
         
           -3.26% 
            |  
      
|  
           2012 
            |  
         
           30.88 
            |  
         
           35.79 
            |  
         
           4.91 
            |  
         
           15.90% 
            |  
      
|  
           2013 
            |  
         
           35.79 
            |  
         
           33.87 
            |  
         
           -1.92 
            |  
         
           -5.36% 
            |  
      
|  
           2014 
            |  
         
           33.87 
            |  
         
           37.63 
            |  
         
           3.76 
            |  
         
           11.10% 
            |  
      
|  
           2015 
            |  
        
           37.63 
            |  
         
           31.05 
            |  
         
           -6.58 
            |  
         
           -17.49% 
            |  
      
|  
           2016 
            |  
         
           31.05 
            |  
         
           39.50 
            |  
         
           8.45 
            |  
         
           27.21% 
            |  
      
|  
           2017 
            |  
         
           39.50 
            |  
         
           43.01 
            |  
         
           3.51 
            |  
         
           8.89% 
            |  
      
|  
           2018 
            |  
        
           43.01 
            |  
         
           41.88 
            |  
         
           -1.13 
            |  
         
           -2.63% 
            |  
      
|  
           2019 
            |  
        
           41.88 
            |  
         
           60.05 
            |  
         
           18.17 
            |  
         
           43.39% 
            |  
      
|  
           2020 
            |  
        
           60.05 
            |  
         
           67.2705* 
            |  
         
           7.2205 
            |  
         
           12.02% 
            |