 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1975 
           | 19.375 
           | 23.375 
             | 4.00 
           | 20.65% 
           | 
| 1976 
           | 23.375 
           | 30.75 
             | 7.375 
           | 31.55% 
           | 
| 1977 
           | 30.75 
           | 29.625 
             | -1.125 
           | -3.66% 
           | 
| 1978 
           | 29.625 
           | 35.50 
             | 5.875 
           | 19.83% 
           | 
| 1979 
           | 35.50 
           | 48.375 
             | 12.875 
           | 36.27% 
           | 
| 1980 
           | 48.375 
           | 90.00* 
             | 41.625 
           | 86.05% 
           | 
| 1981 
           | 45.00 
           | 32.75 
             | -12.25 
           | -27.22% 
           | 
| 1982 
           | 32.75 
           | 42.50 
             | 9.75 
           | 29.77% 
           | 
| 1983 
           | 42.50 
           | 66.00* 
             | 23.50 
           | 55.29% 
           | 
| 1984 
           | 33.00 
           | 30.375 
             | -2.625 
           | -7.95% 
           | 
| 1985 
           | 30.375 
           | 35.75 
             | 5.375 
           | 17.70% 
           | 
| 1986 
           | 35.75 
           | 45.375 
             | 9.625 
           | 26.92% 
           | 
| 1987 
           | 45.375 
           | 38.00* 
             | -7.375 
           | -16.25% 
           | 
| 1988 
           | 19.00 
           | 21.75 
             | 2.75 
           | 14.47% 
           | 
| 1989 
           | 21.75 
           | 23.75 
             | 2.00 
           | 9.20% 
           | 
| 1990 
           | 23.75 
           | 27.75 
             | 4.00 
           | 16.84% 
           | 
| 1991 
           | 27.75 
           | 27.375 
             | -0.375 
           | -1.35% 
           | 
| 1992 
           | 27.375 
           | 29.00 
             | 1.625 
           | 5.94% 
           | 
| 1993 
           | 29.00 
           | 37.125 
             | 8.125 
           | 28.02% 
           | 
| 1994 
           | 37.125 
           | 35.75 
             | -1.375 
           | -3.70% 
           | 
| 1995 
           | 35.75 
           | 52.875 
           | 17.125 
           | 47.90% 
           | 
| 1996 
           | 52.875 
           | 60.875 
           | 8.00 
           | 15.13% 
           | 
| 1997 
           | 60.875 
           | 52.25 
           | -8.625 
           | -14.17% 
           | 
| 1998 
           | 52.25 
           | 48.5625 
           | -3.6875 
           | -7.06% 
           | 
| 1999 
           | 48.5625 
           | 47.875 
             | -0.6875 
           | -1.42% 
           | 
| 2000 
           | 47.875 
           | 47.625 
           | -0.25 
           | -0.52% 
           | 
| 2001 
           | 47.625 
           | 17.86 
             | -29.765 
           | -62.50% 
           | 
| 2002 
           | 17.86 
           | 20.71 
             | 2.85 
           | 15.96% 
           | 
| 2003 
           | 20.71 
           | 35.60 
           | 14.89 
           | 71.90% 
           | 
| 2004 
           | 35.60 
           | 49.55 
             | 13.95 
           | 39.19% 
           | 
| 2005 
           | 49.55 
           | 59.16 
           | 9.61 
           | 19.39% 
           | 
| 2006 
           | 59.16 
           | 61.08 
             | 1.92 
           | 3.25% 
           | 
| 2007 
           | 61.08 
           | 68.96 
           | 7.88 
           | 12.90% 
           | 
| 2008 
           | 68.96 
           | 32.24 
           | -36.72 
           | -53.25% 
           | 
| 2009 
           | 32.24 
           | 46.98 
           | 14.74 
           | 45.72% 
           | 
| 2010 
           | 46.98 
           | 71.71 
           | 24.73 
           | 52.64% 
           | 
| 2011 
           | 71.71 
           | 73.37 
           | 1.66 
           | 2.31% 
           | 
| 2012 
           | 73.37 
           | 83.99 
           | 10.62 
           | 14.47% 
           | 
| 2013 
           | 83.99 
           | 118.16 
           | 34.17 
           | 40.68% 
           | 
| 2014 
           | 118.16 
           | 111.20 
           | -6.96 
           | -5.89% 
           | 
| 2015 
           | 111.20 
           | 102.61 
           | -8.59 
           | -7.72% 
           | 
| 2016 
           | 102.61 
           | 134.40 
           | 31.79 
           | 30.98% 
           | 
| 2017 
           | 134.40 
           | 196.35 
           | 61.95 
           | 46.09% 
           | 
| 2018 
           | 196.35 
           | 150.48 
           | -45.87 
           | -23.36% 
           | 
| 2019 
           | 150.48 
           | 202.67 
           | 52.19 
           | 34.68% 
           | 
| 2020 
           | 202.67 
           | 250.81 
           | 48.14 
           | 23.75% 
           | 
| 2021 
           | 250.81 
           | 348.85 
           | 98.04 
           | 39.09% 
           | 
| 2022 
           | 348.85 
           | 257.57 
           | -91.28 
           | -26.17% 
           | 
| 2023 
           | 257.57 
           | 310.48 
           | 52.91 
           | 20.54% 
           | 
| 2024 
           | 310.48 
           | 285.79 
           | -24.69 
           | -7.95% 
           |