Year	Years
1980	-0.03762
1981	0.4583
1982	-0.6953
1983	-0.5585
1984	-1.299
1985	-1.709
1986	-2.073
1987	-2.239
1988	-1.323
1989	-1.093
1990	-0.2793
1991	-0.5815
1992	0.2795
1993	1.302
1994	1.416
1995	1.803
1996	1.438
1997	1.729
1998	1.644
1999	1.771
2000	2.093
2001	1.933
2002	2.338
2003	0.7789