 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1975 
           | 40.00 
           | 32.00 
           | -8.00 
               | -20.00% 
           | 
| 1976 
           | 32.00 
           | 44.00 
               | 12.00 
               | 37.50% 
           | 
| 1977 
           | 44.00 
           | 40.75 
           | -3.25 
               | -7.39% 
           | 
| 1978 
           | 40.75 
           | 35.50 
           | -5.25 
               | -12.88% 
           | 
| 1979 
           | 35.50 
           | 56.125 
               | 20.625 
               | 58.10% 
           | 
| 1980 
           | 56.125 
               | 128.75* 
               | 72.625 
               | 129.40% 
           | 
| 1981 
           | 64.375 
               | 53.625 
               | -10.75 
                 | -16.70% 
           | 
| 1982 
           | 53.625 
               | 53.125 
               | -0.50 
                 | -0.93% 
           | 
| 1983 
           | 53.125 
                 | 99.00 
               | 45.875 
                   | 86.35% 
           | 
| 1984 
           | 99.00 
                 | 94.00* 
                   | -5.00 
                 | -5.05% 
           | 
| 1985 
           | 47.00 
               | 68.25 
               | 21.25 
               | 45.21% 
           | 
| 1986 
           | 68.25 
           | 53.25 
           | -15.00 
                 | -21.98% 
           | 
| 1987 
           | 53.25 
           | 62.75 
           | 9.50 
                 | 17.84% 
           | 
| 1988 
           | 62.75 
           | 79.00 
           | 16.25 
               | 25.90% 
           | 
| 1989 
           | 79.00 
           | 31.50 
           | -47.50 
             | -60.13% 
           | 
| 1990 
           | 31.50 
           | 28.75 
           | -2.75 
           | -8.73% 
           | 
| 1991 
           | 28.75 
           | 40.50 
           | 11.75 
                 | 40.87% 
           | 
| 1992 
           | 40.50 
           | 43.50 
           | 3.00 
               | 7.41% 
           | 
| 1993 
           | 43.50 
           | 57.875 
           | 14.375 
               | 33.05% 
           | 
| 1994 
           | 57.875 
           | 48.125 
           | -9.75 
           | -16.85% 
           | 
| 1995 
           | 48.125 
           | 78.00 
                 | 29.875 
               | 62.08% 
           | 
| 1996 
           | 78.00 
           | 86.375 
                 | 8.375 
               | 10.74% 
           | 
| 1997 
           | 86.375 
           | 92.9375 
                 | 6.5625 
           | 7.60% 
           | 
| 1998 
           | 92.9375 
           | 102.75* 
               | 9.8125 
               | 10.56% 
           | 
| 1999 
           | 34.25 
           | 24.25 
           | -10.00 
               | -29.20% 
           | 
| 2000 
           | 24.25 
           | 28.3125 
                 | 4.0625 
                 | 16.75% 
           | 
| 2001 
           | 28.3125 
           | 28.53 
           | 0.2175 
               | 0.77% 
           | 
| 2002 
           | 28.53 
           | 26.01 
           | -2.52 
               | -8.83% 
           | 
| 2003 
           | 26.01 
           | 32.35 
                 | 6.34 
               | 24.38% 
           | 
| 2004 
           | 32.35 
           | 47.31 
               | 14.96 
               | 46.24% 
           | 
| 2005 
           | 47.31 
           | 70.82 
                 | 23.51 
           | 49.69% 
           | 
| 2006 
           | 70.82 
           | 73.81 
               | 2.99 
           | 4.22% 
           | 
| 2007 
           | 73.81 
           | 83.23 
           | 9.42 
                 | 12.76% 
             | 
| 2008 
           | 83.23 
           | 75.71 
           | -7.52 
               | -9.04% 
               | 
| 2009 
           | 75.71 
           | 98.62 
             | 22.91 
           | 30.26% 
           | 
| 2010 
           | 98.62 
           | 100.00* 
             | 1.38 
           | 1.34% 
           |