Year	Percent
1982	5.22296
1983	8.10311
1985	10.47114
1986	15.88865
1987	21.80777
1988	28.00032
1989	25.85937
1990	16.05545
1991	11.10486
1992	10.61377
1993	26.35641
1994	37.00147
1995	32.88953
1996	46.44707
1997	58.19008
1998	115.60156
1999	258.37779
2000	233.89728
2001	147.35452
2002	99.48357
2003	99.54472
2004	93.39187