Year	annual % growth
1981	1.5145905991962252
1982	-0.2727961339760441
1983	1.029411092525521
1984	3.373867326223362
1985	0.9656901676508198
1986	4.425977101443991
1987	7.805718337282116
1988	7.890970010446068
1989	11.88859720373263
1990	7.096126619815337
1991	6.668414568250142
1992	12.24924046176541
1993	5.228460437311952
1994	2.715637898956899
1995	0.8660724468014394
1996	1.1756345071105585
1997	4.080231055857482
1998	6.648796322533855
1999	8.352772690380192
2000	8.712359187829605
2001	4.567821090116425
2002	5.233969451274106
2003	5.851301277715606
2004	3.1723739275187484
2005	4.123660232105124
2006	1.1370472233304838
2007	4.401693599868068
2008	-0.854118410852962
2009	-0.8897251597944376
2010	2.7428278638382153
2011	0.42043421844932993
2012	5.250768755214665
2013	4.837203480093848
2014	2.439789571267255
2015	4.556911843425723
2016	-0.6598571905304453
2017	-0.9128734966254939
2018	1.508004078885648
2019	5.021410100952679
2020	-16.861157852407032
2021	16.576838104913634
2022	9.780636066924004
2023	4.1410060006263905