Year	annual % growth
1971	-3.334996088496652
1972	-9.28732804945463
1973	-3.937768563008305
1974	14.457084843333206
1975	16.9811392429106
1976	10.289725179982284
1977	-0.5957885829418075
1978	-1.6346652828230503
1979	5.290136817673186
1980	9.746133168906795
1981	8.940579249383688
1982	23.256317958963407
1983	8.74687493086131
1984	-1.1818748845563931
1985	3.571415671571714
1986	-5.709692297095941
1987	20.496668589316002
1988	3.049132726195623
1989	0.06849359951961276
1990	-11.348388436240299
1991	3.721427005334931
1992	29.998514143797223
1993	-2.233167543220617
1994	-12.04169845679236
1995	5.992804412737556
1996	36.60007868164533
1997	6
1998	5.563028301886803
1999	0.946577476158609
2000	2.196828853712958
2001	-4.484090734852515
2002	7.947932331185072
2003	-0.09366130248189108
2004	6.795052825537425
2005	4.629518366868695
2006	0.8665674437423121
2007	12.10486633172654
2008	8.122145499119227
2009	8.492817635481728