 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1975 
           | 25.75 
           | 33.50 
             | 7.75 
           | 30.10% 
           | 
| 1976 
           | 33.50 
           | 40.25 
             | 6.75 
           | 20.15% 
           | 
| 1977 
           | 40.25 
           | 37.00 
             | -3.25 
           | -8.07% 
           | 
| 1978 
           | 37.00 
           | 41.625 
             | 4.625 
           | 12.50% 
           | 
| 1979 
           | 41.625 
           | 42.00 
               | 0.375 
           | 0.90% 
           | 
| 1980 
           | 42.00 
           | 51.00 
               | 9.00 
           | 21.43% 
           | 
| 1981 
           | 51.00 
           | 58.00 
               | 7.00 
           | 13.73% 
           | 
| 1982 
           | 58.00 
           | 52.50 
               | -5.50 
           | -9.48% 
           | 
| 1983 
           | 52.50 
           | 74.50 
               | 22.00 
           | 41.90% 
           | 
| 1984 
           | 74.50 
           | 70.75* 
             | -3.75 
           | -5.03% 
           | 
| 1985 
           | 35.375 
           | 40.75 
             | 5.375 
           | 15.19% 
           | 
| 1986 
           | 40.75 
           | 43.125 
             | 2.375 
           | 5.83% 
           | 
| 1987 
           | 43.125 
           | 52.00 
             | 8.875 
           | 20.58% 
           | 
| 1988 
           | 52.00 
           | 47.25 
             | -4.75 
           | -9.13% 
           | 
| 1989 
           | 47.25 
           | 49.875 
             | 2.625 
           | 5.56% 
           | 
| 1990 
           | 49.875 
           | 47.25 
               | -2.625 
           | -5.26% 
           | 
| 1991 
           | 47.25 
           | 57.50 
             | 10.25 
           | 21.69% 
           | 
| 1992 
           | 57.50 
           | 65.50 
             | 8.00 
           | 13.91% 
           | 
| 1993 
           | 65.50 
           | 58.50 
             | -7.00 
           | -10.69% 
           | 
| 1994 
           | 58.50 
           | 67.125 
             | 8.625 
           | 14.74% 
           | 
| 1995 
           | 67.125 
           | 73.75 
             | 6.625 
                 | 9.87% 
           | 
| 1996 
           | 73.75 
           | 88.75* 
             | 15.00 
           | 20.34% 
           | 
| 1997 
           | 44.375 
           | 47.25 
             | 2.875 
           | 6.48% 
           | 
| 1998 
           | 47.25 
           | 43.3125 
             | -3.9375 
           | -8.33% 
           | 
| 1999 
           | 43.3125 
           | 31.875 
             | -11.4375 
           | -26.41% 
           | 
| 2000 
           | 31.875 
           | 16.1875 
             | -15.6875 
                 | -49.22% 
           | 
| 2001 
           | 16.1875 
           | 21.15 
             | 4.9625 
           | 30.66% 
           | 
| 2002 
           | 21.15 
           | 16.90 
             | -4.25 
           | -20.09% 
           | 
| 2003 
           | 16.90 
           | 22.89 
             | 5.99 
           | 35.44% 
           | 
| 2004 
           | 22.89 
           | 30.75 
             | 7.86 
           | 34.34% 
           | 
| 2005 
           | 30.75 
           | 41.96 
             | 11.21 
           | 36.46% 
           | 
| 2006 
           | 41.96 
           | 47.28 
             | 5.32 
               | 12.68% 
           | 
| 2007 
           | 47.28 
           | 49.04 
           | 1.76 
           |   3.72% 
           | 
| 2008 
           | 49.04 
           | 24.02 
           | -25.02 
           | -51.02% 
           | 
| 2009 
           | 24.02 
           | 35.79 
           | 11.77 
           | 49.00% 
           | 
| 2010 
           | 35.79 
           | 48.30 
           | 12.51 
           | 34.95% 
           | 
| 2011 
           | 48.30 
           | 54.60 
           | 6.30 
           | 13.04% 
           | 
| 2012 
           | 54.60 
           | 72.00** 
           | 17.40 
           | 31.87% 
           |