Year	annual % growth
1981	0.5045795640759536
1982	1.1375658948490752
1983	15.851744315707833
1984	-9.697528941655946
1985	21.945487799536977
1986	-13.226819897417329
1987	7.625825081477728
1988	2.7884517323199134
1989	-1.2806044852337664
1990	27.52196727190757
1991	-0.7327627230537814
1992	20.308318270947282
1993	13.439964803933236
1994	-11.862106318363601
1995	10.897573351659418
1996	6.886749471275763
1997	6.504386133205571
1998	2.78600724962142
1999	-14.657185889722129
2000	-16.362342234033832
2001	5.782312767069527
2002	-1.607801796786859
2003	0.6536364170172959
2004	6.873465438902926
2005	18.92366997322314
2006	18.530328160125634
2007	-14.781125512642248
2008	20.32620349000875
2009	-3.699660977174915
2010	0.7785716602336521
2011	14.982378340908326
2012	1.1021753157124579
2013	-13.321048617625848
2014	17.058280563796032
2015	1.8088039658203456
2016	18.659181270551215
2017	7.234946982335956
2018	10.432378561234529
2019	1.843292539863711
2020	1.1807752125098148
2021	8.23699562038314
2022	1.293705861356372
2023	4.329024038091347