 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1975 
           | 21.00 
           | 23.00 
             | 2.00 
           | 9.52% 
           | 
| 1976 
           | 23.00 
           | 27.00 
             | 4.00 
           | 17.39% 
           | 
| 1977 
           | 27.00 
           | 31.00 
           | 4.00 
           | 14.81% 
           | 
| 1978 
           | 31.00 
           | 26.50 
             | -4.50 
           | -14.52% 
           | 
| 1979 
           | 26.50 
           | 29.50 
             | 3.00 
           | 11.32% 
           | 
| 1980 
           | 29.50 
           | 32.50 
             | 3.00 
               | 10.17% 
           | 
| 1981 
           | 32.50 
           | 33.50* 
           | 1.00 
           | 3.08% 
           | 
| 1982 
           | 16.75 
           | 19.50 
             | 2.75 
           | 16.42% 
           | 
| 1983 
           | 19.50 
           | 21.50 
             | 2.00 
           | 10.26% 
           | 
| 1984 
           | 21.50 
           | 20.00 
           | -1.50 
           | -6.98% 
           | 
| 1985 
           | 20.00 
           | 23.50 
             | 3.50 
           | 17.50% 
           | 
| 1986 
           | 23.50 
           | 24.25 
               | 0.75 
           | 3.19% 
           | 
| 1987 
           | 24.25 
           | 23.50 
             | -0.75 
           | -3.09% 
           | 
| 1988 
           | 23.50 
           | 26.25 
           | 2.75 
                 | 11.70% 
           | 
| 1989 
           | 26.25 
           | 35.00 
             | 8.75 
           | 33.33% 
           | 
| 1990 
           | 35.00 
           | 35.00 
             | 0 
           | 0.00% 
           | 
| 1991 
           | 35.00 
           | 36.00 
             | 1.00 
           | 2.86% 
           | 
| 1992 
           | 36.00 
           | 42.875 
             | 6.875 
           | 19.10% 
           | 
| 1993 
           | 42.875 
           | 47.00 
             | 4.125 
           | 9.62% 
           | 
| 1994 
           | 47.00 
           | 48.25 
             | 1.25 
           | 2.66% 
           | 
| 1995 
           | 48.25 
           | 47.75* 
             | -0.50 
           | -1.04% 
           | 
| 1996 
           | 23.875 
           | 27.50 
             | 3.625 
           | 15.18% 
           | 
| 1997 
           | 27.50 
           | 36.375 
             | 8.875 
           | 32.27% 
           | 
| 1998 
           | 36.375 
           | 40.125 
               | 3.75 
           | 10.31% 
           | 
| 1999 
           | 40.125 
           | 32.75 
             | -7.375 
           | -18.38% 
           | 
| 2000 
           | 32.75 
           | 48.00 
             | 15.25 
           | 46.56% 
           | 
| 2001 
           | 48.00 
           | 37.10 
             | -10.90 
           | -22.71% 
           | 
| 2002 
           | 37.10 
           | 32.60 
             | -4.50 
           | -12.13% 
           | 
| 2003 
           | 32.60 
           | 43.30 
           | 10.70 
           | 32.82% 
           | 
| 2004 
           | 43.30 
           | 39.65 
             | -3.65 
           | -8.43% 
           | 
| 2005 
           | 39.65 
           | 52.00 
             | 12.35 
           | 31.15% 
           | 
| 2006 
           | 52.00 
           | 58.00* 
           | 6.00 
           | 11.54% 
           | 
| 2007 
           | 29.00 
           | 44.29 
           | 15.29 
           | 52.72% 
           | 
| 2008 
           | 44.29 
           | 15.40 
           | -28.89 
           | -65.23% 
           | 
| 2009 
           | 15.40 
           | 26.19 
             | 10.79 
           | 70.06% 
           | 
| 2010 
           | 26.19 
           | 38.41 
             | 12.22 
           | 46.66% 
           | 
| 2011 
           | 38.41 
           | 38.87 
           | 0.46 
           | 1.20% 
           | 
| 2012 
           | 38.87 
           | 43.95 
           | 5.08 
           | 13.07% 
           | 
| 2013 
           | 43.95 
           | 67.81 
           | 23.86 
           | 54.29% 
           | 
| 2014 
           | 67.81 
           | 72.17 
           | 4.36 
           | 6.43% 
           | 
| 2015 
           | 72.17 
           | 56.26 
           | -15.91 
           | -22.05% 
           | 
| 2016 
           | 56.26 
           | 71.20 
           | 14.94 
           | 26.56% 
           | 
| 2017 
           | 71.20 
           | 72.65 
           | 1.45 
           | 2.04% 
           | 
| 2018 
           | 72.65 
           | 52.11 
           | -20.54 
           | -28.27% 
           | 
| 2019 
           | 52.11 
           | 77.92 
           | 25.81 
           | 49.53% 
           | 
| 2020 
           | 77.92 
           | 70.17 
           | -7.75 
           | -9.95% 
           | 
| 2021 
           | 70.17 
           | 81.04 
           | 10.87 
           | 15.49% 
           | 
| 2022 
           | 81.04 
           | 61.57 
           | -19.47 
           | -24.03% 
           | 
| 2023 
           | 61.57 
           | 92.69 
           | 31.12 
           | 50.54% 
           | 
| 2024 
           | 92.69 
           | 81.53 
           | -11.16 
           | -12.04% 
           |