Year	annual % growth
1971	16.28698191871223
1972	-2.578309834311767
1973	11.698882578217564
1974	6.016420592691787
1975	9.86758136566688
1976	9.909484740676206
1977	3.043423211159663
1978	-10.944132063627748
1979	1.923849859325614
1980	-1.1997951784537122
1981	5.040344799854651
1982	0.7942651841895412
1983	5.503947064880393
1984	1.2959377949858464
1985	-3.1639105186401935
1986	7.3993024501235425
1987	0.7699745366737716
1988	-1.0097458052848367
1989	-6.7452423242831685
1990	-10.312176035394288
1991	-0.39712637052588207
1992	-1.972227383349221
1993	5.255815109652801
1994	5.252856835001722
1995	3.2273807086382362
1996	9.360141285151485
1997	14.760248447204958
1998	12.310623281591646
1999	-4.9285430649955515
2000	-3.2899032047460963
2001	-0.6128139544635047
2002	-0.3535439831075138
2003	0.48901204747862437
2004	10.147021957441794
2005	11.884488713952933
2006	9.066371280536487
2007	12.251992445555501
2008	1.1298409538024572
2009	-7.015749020777335
2010	-6.421236436203387
2011	7.450994703588165
2012	7.542561470295951
2013	6.334283066149467
2014	-0.2519350314951083
2015	-4.003857829905954
2016	3.943079618139336
2017	2.6347815030761694
2018	2.224444236569539
2019	9.513263119364979
2020	-4.102407176135557
2021	0.6934182375237157
2022	5.2258056971794815
2023	0.2832697485911382