 
 
|      Year  
           |   Beginning Price  
           |   Ending Price  
           |   Gain or Loss 
           |   Percent Gain or Loss  
           | 
| 1975 
           | 25.735 
           | 25.25* 
           | -0.125 
           | -0.49% 
           | 
| 1976 
           | 12.625 
           | 13.00 
           | 0.375 
           | 2.97% 
           | 
| 1977 
           | 13.00 
           | 15.625 
           | 2.625 
           | 20.19% 
           | 
| 1978 
           | 15.625 
           | 11.125 
           | -4.50 
           | -28.80% 
           | 
| 1979 
           | 11.125 
           | 28.50 
           | 17.375 
           | 156.18% 
           | 
| 1980 
           | 28.50 
               | 72.25 
           | 43.75 
           | 153.51% 
           | 
| 1981 
           | 72.25 
           | 56.50* 
           | -15.75 
           | -21.80% 
           | 
| 1982 
           | 28.25 
           | 16.25 
           | -12.00 
           | -42.48% 
           | 
| 1983 
           | 16.25 
           | 16.875 
           | 0.625 
           | 3.85% 
           | 
| 1984 
           | 16.875 
           | 16.375 
           | -0.50 
           | -2.96% 
           | 
| 1985 
           | 16.375 
           | 7.625 
           | -8.75 
           | -53.44% 
           | 
| 1986 
           | 7.625 
           | 3.00 
           | -4.625 
           | -60.66% 
           | 
| 1987 
           | 3.00 
           | 2.625 
           | -0.375 
           | -12.50% 
           | 
| 1988 
           | 2.625 
           | 2.125 
           | -0.50 
           | -19.05% 
           | 
| 1989 
           | 2.125 
           | 3.50 
           | 1.375 
           | 64.71% 
           | 
| 1990 
           | 3.50 
           | 0.50 
           | -3.00 
           | -85.71% 
           | 
| 1991 
           | 0.50 
           | 0.50 
             | 0 
           | 0.00% 
           | 
| 1992 
           | 0.50 
           | 0.875 
           | 0.375 
           | 75.00% 
           | 
| 1993 
           | 0.875 
           | 1.25 
           | 0.375 
           | 42.86% 
           | 
| 1994 
           | 1.25 
           | 0.725* 
           | -0.525 
           | -42.00% 
           | 
| 1995 
           | 3.625 
           | 3.125 
           | -0.50 
           | -13.79% 
           | 
| 1996 
           | 3.125 
           | 4.25 
           | 1.125 
           | 36.00% 
           | 
| 1997 
           | 4.25 
           | 6.75 
           | 2.50 
           | 58.82% 
           | 
| 1998 
           | 6.75 
           | 12.25 
           | 5.50 
           | 81.48% 
           | 
| 1999 
           | 12.25 
           | 4.625 
           | -7.625 
           | -62.24% 
           | 
| 2000 
           | 4.625 
           | 1.5625 
           | -3.0625 
           | -66.22% 
           | 
| 2001 
           | 1.5625 
           | 2.90* 
           | 1.3375 
           | 85.60% 
           | 
| 2002 
           | 29.00 
           | 30.55 
           | 1.55 
           | 5.34% 
           | 
| 2003 
           | 30.55 
           | 57.99 
           | 27.44 
           | 89.82% 
           | 
| 2004 
           | 57.99 
           | 59.99 
           | 1.91 
           | 3.29% 
           | 
| 2005 
           | 59.99 
           | 46.16* 
           | -13.74 
           | -22.94% 
           | 
| 2006 
           | 5.77 
           | 7.00 
           | 1.23 
           | 21.32% 
           | 
| 2007 
           | 7.00 
           | 7.32 
           | 0.32 
           | 4.57% 
           | 
| 2008 
           | 7.32 
           | 6.03 
           | -1.29 
           | -17.62% 
           | 
| 2009 
           | 6.03 
           | 7.02 
           | 0.99 
           | 16.42% 
           | 
| 2010 
           | 7.02 
           | 6.19 
           | -0.83 
           | 11.82% 
           | 
| 2011 
           | 6.19 
           | 4.01 
           | -2.18 
           | -35.22% 
           | 
| 2012 
           | 4.01 
           | 7.69 
           | 3.68 
           | 91.77% 
           | 
| 2013 
           | 7.69 
           | 11.85 
           | 4.16 
           | 54.10% 
           | 
| 2014 
           | 11.85 
           | 14.16 
           | 2.31 
           | 19.49% 
           | 
| 2015 
           | 14.16 
           | 13.56 
           | -0.60 
           | -4.24% 
           | 
| 2016 
           | 13.56 
           | 15.56 
           | 2.00 
           | 14.75% 
           | 
| 2017 
           | 15.56 
           | 16.95 
           | 1.39 
           | 8.93% 
           | 
| 2018 
           | 16.95 
           | 6.813* 
           | -10.137 
           | -59.81% 
           |