Year	annual %
1976	6.94452239703548
1977	-4.06572451296911
1978	5.42234755142029
1979	-0.011150354617584
1980	7.7826361981095
1981	5.36663821313441
1982	-2.26260672679838
1983	-2.01904884856829
1984	-7.12602321065511
1985	2.63376921605349
1986	-8.50562337877052
1987	-4.22729225439163
1988	9.4304851494645
1989	-14.8956021954814
1990	5.43153786098955
1991	4.9831090423605
1992	10.7762206461887
1993	2.65108406251176
1994	8.7072551115327
1995	2.94440747946739
1996	-0.209351246809618
1997	-5.40015371611635
1998	5.09661166682986
1999	-6.6058490753809
2000	-0.718671022495997
2001	3.95113506119769
2002	3.37114604385336