Year	annual % growth
1971	11.199865039162617
1972	13.49752000017341
1973	22.603401626718878
1974	63.34077588288895
1975	43.60160751540653
1976	-2.0349609909230253
1977	15.160663452324656
1978	-24.288677141140795
1979	-17.48194988562227
1980	1.8940215617752898
1981	0.7754093815805163
1982	-8.76203577059728
1983	25.056203855867466
1984	-19.12957820423962
1985	-1.815365303102837
1986	-12.970718673901914
1987	0.5937807357038025
1988	-7.5122595645904795
1989	14.957216994766398
1990	18.426302262771515
1991	21.30382610112538
1992	-3.0767508427901475
1993	-10.248884907416183
1994	-22.199213205045993
1995	4.663604158305873
1996	6.4579500141266095
1997	-1.6218030893595028
1998	4.675823777059122
1999	-1.6343080270525974
2000	8.509138823155894
2001	12.175010964860206
2002	11.677523536124966
2003	11.26050639904426
2004	10.849328393359741
2005	4.688765374360557
2006	5.152333300595259
2007	11.698403723719423
2008	13.725793942714802
2009	-3.6157365598665194
2010	5.888413144982422
2011	-6.082325577806827
2012	-0.01073838533829985
2013	-3.3657770847114534
2014	-0.32262239678499327
2015	-9.122284442678236
2016	-1.8556034784190274
2017	13.135852563456751
2018	-0.5353400406872026
2019	-2.7010104075842776
2020	-21.65090027854535
2021	8.718965859506511
2022	9.31757577804521
2023	4.808241751027722