|  
                Year  
            |  
         
             Beginning Price  
            |  
         
             Ending Price  
            |  
         
             Gain or Loss 
            |  
         
             Percent Gain or Loss  
            |  
      
|  
           1975 
            |  
         
           4.375 
            |  
         
           15.50 
            |  
         
           11.125 
            |  
         
           254.29% 
            |  
      
|  
           1976 
            |  
         
           15.50 
            |  
         
           20.25 
            |  
         
           4.75 
            |  
         
           30.65% 
            |  
      
|  
           1977 
            |  
         
           20.25 
            |  
         
           14.25 
            |  
         
           -6.00 
            |  
         
           -29.63% 
            |  
      
|  
           1978 
            |  
         
           14.25 
            |  
         
           9.50 
            |  
         
           -4.75 
            |  
         
           -33.33% 
            |  
      
|  
           1979 
            |  
         
           9.50 
            |  
         
           10.50 
            |  
         
           1.00 
            |  
         
           10.53% 
            |  
      
|  
           1980 
            |  
         
           10.50 
            |  
         
           10.00 
            |  
         
           -0.50 
            |  
         
           -4.76% 
            |  
      
|  
           1981 
            |  
         
           10.00 
            |  
         
           12.25 
            |  
         
           2.25 
            |  
         
           22.50% 
            |  
      
|  
           1982 
            |  
         
           12.25 
            |  
         
           20.25 
            |  
         
           8.00 
            |  
         
           65.31% 
            |  
      
|  
           1983 
            |  
         
           20.25 
            |  
         
           46.25 
            |  
         
           26.00 
            |  
         
           128.40% 
            |  
      
|  
           1984 
            |  
         
           46.25 
            |  
         
           34.25 
            |  
         
           -12.00 
            |  
         
           -25.95% 
            |  
      
|  
           1985 
            |  
         
           34.25 
            |  
         
           53.50 
            |  
         
           19.25 
            |  
         
           56.20% 
            |  
      
|  
           1986 
            |  
         
           53.50 
            |  
         
           63.00 
            |  
         
           9.50 
            |  
         
           17.76% 
            |  
      
|  
           1987 
            |  
         
           63.00 
            |  
         
           64.00* 
            |  
         
           1.00 
            |  
         
           1.59% 
            |  
      
|  
           1988 
            |  
         
           16.00 
            |  
         
           19.00 
            |  
         
           3.00 
            |  
         
           18.75% 
            |  
      
|  
           1989 
            |  
         
           19.00 
            |  
         
           17.75 
            |  
         
           -1.25 
            |  
         
           -6.58% 
            |  
      
|  
           1990 
            |  
         
           17.75 
            |  
         
           16.625 
            |  
         
           -1.125 
            |  
         
           -6.34% 
            |  
      
|  
           1991 
            |  
         
           16.625 
            |  
         
           23.875 
            |  
         
           7.25 
            |  
         
           43.61% 
            |  
      
|  
           1992 
            |  
         
           23.875 
            |  
         
           25.875 
            |  
         
           2.00 
            |  
         
           8.38% 
            |  
      
|  
           1993 
            |  
         
           25.875 
            |  
         
           37.50 
            |  
         
           11.625 
            |  
         
           44.93% 
            |  
      
|  
           1994 
            |  
         
           37.50 
            |  
         
           31.875 
            |  
         
           -5.625 
            |  
         
           -15.00% 
            |  
      
|  
           1995 
            |  
         
           31.875 
            |  
         
           30.875 
            |  
         
           -1.00 
            |  
         
           -3.14% 
            |  
      
|  
           1996 
            |  
         
           30.875 
            |  
         
           29.50 
            |  
         
           -1.375 
            |  
         
           -4.45% 
            |  
      
|  
           1997 
            |  
         
           29.50 
            |  
         
           43.125 
            |  
         
           13.625 
            |  
         
           46.19% 
            |  
      
|  
           1998 
            |  
         
           43.125 
            |  
         
           53.4375* 
            |  
         
           10.3125 
            |  
         
           23.91% 
            |  
      
|  
           1999 
            |  
         
           17.8125 
            |  
         
           16.8125 
            |  
         
           -1.00 
            |  
         
           -5.61% 
            |  
      
|  
           2000 
            |  
         
           16.8125 
            |  
         
           15.75 
            |  
         
           -1.0625 
            |  
         
           -6.32% 
            |  
      
|  
           2001 
            |  
         
           15.75 
            |  
         
           21.82 
            |  
         
           6.07 
            |  
         
           38.54% 
            |  
      
|  
           2002 
            |  
         
           21.82 
            |  
         
           23.98 
            |  
         
           2.16 
            |  
         
           9.90% 
            |  
      
|  
           2003 
            |  
         
           23.98 
            |  
         
           20.98 
            |  
         
           -3.00 
            |  
         
           -12.51% 
            |  
      
|  
           2004 
            |  
         
           20.98 
            |  
         
           15.37 
            |  
         
           -5.61 
            |  
         
           -26.74% 
            |  
      
|  
           2005 
            |  
         
           15.37 
            |  
         
           13.56 
            |  
         
           -1.81 
            |  
         
           -11.78% 
            |  
      
|  
           2006 
            |  
         
           13.56 
            |  
         
           11.87 
            |  
         
           -1.69 
            |  
         
           -12.46% 
            |  
      
|  
           2007 
            |  
         
           11.87 
            |  
         
           7.93 
            |  
         
           -3.94 
            |  
         
           -33.19% 
            |  
      
|  
           2008 
            |  
         
           7.93 
            |  
         
           2.17 
            |  
         
           -5.76 
            |  
         
           -72.64% 
            |  
      
|  
           2009 
            |  
         
           2.17 
            |  
         
           9.53 
            |  
         
           7.36 
            |  
         
           339.17% 
            |  
      
|  
           2010 
            |  
         
           9.53 
            |  
         
           9.02 
            |  
         
           -0.51 
            |  
         
           -5.35% 
            |  
      
|  
           2011 
            |  
         
           9.02 
            |  
         
           11.90 
            |  
         
           2.88 
            |  
         
           31.93% 
            |  
      
|  
           2012 
            |  
         
           11.90 
            |  
         
           14.15 
            |  
         
           2.25 
            |  
         
           18.91% 
            |  
      
|  
           2013 
            |  
         
           14.15 
            |  
         
           31.00 
            |  
         
           16.85 
            |  
         
           119.08% 
            |  
      
|  
           2014 
            |  
         
           31.00 
            |  
         
           26.84 
            |  
         
           -4.16 
            |  
         
           -13.42% 
            |  
      
|  
           2015 
            |  
        
           26.84 
            |  
         
           24.42 
            |  
         
           -2.42 
            |  
         
           -9.02% 
            |  
      
|  
           2016 
            |  
         
           24.42 
            |  
         
           31.05 
            |  
         
           6.63 
            |  
         
           27.15% 
            |  
      
|  
           2017 
            |  
         
           31.05 
            |  
         
           31.20 
            |  
         
           0.15 
            |  
         
           0.48% 
            |  
      
|  
           2018 
            |  
        
           31.20 
            |  
         
           27.71 
            |  
         
           -3.49 
            |  
         
           -11.19% 
            |  
      
|  
           2019 
            |  
        
           27.71 
            |  
         
           31.48 
            |  
         
           3.77 
            |  
         
           13.61% 
            |  
      
|  
           2020 
            |  
        
           31.48 
            |  
         
           39.84 
            |  
         
           8.36 
            |  
         
           26.56% 
            |  
      
|  
           2021 
            |  
        
           39.84 
            |  
         
           36.31 
            |  
         
           -3.53 
            |  
         
           -8.86% 
            |  
      
|  
           2022 
            |  
        
           36.31 
            |  
         
           22.82 
            |  
         
           -13.49 
            |  
         
           -37.15% 
            |  
      
|  
           2023 
            |  
        
           22.82 
            |  
         
           36.92 
            |  
         
           14.10 
            |  
         
           61.79% 
            |  
      
|  
           2024 
            |  
        
           36.92 
            |  
         
           43.57 
            |  
         
           6.65 
            |  
         
           18.01% 
            |