Year	annual % growth
1971	24.57887143048241
1972	0.5134066361384129
1973	20.329857271754022
1974	12.517281981060123
1975	-12.754338804923478
1976	-3.648308283049545
1977	20.579829303823985
1978	3.6405888115663885
1979	2.466367736839416
1980	2.9905178219018893
1981	7.115991873829984
1982	-0.5701986210281689
1983	-9.695380610919742
1984	9.145147339741413
1985	9.419213549215726
1986	0.9485424800318896
1987	23.265258299915544
1988	-4.584886659666736
1989	-10.257288844786501
1990	0.9908182325296906
1991	5.258668946852623
1992	-5.972338464082398
1993	-7.501212039013865
1994	3.8219781554571313
1995	3.6175109660428575
1996	14.599088387881778
1997	6.88012371705409
1998	21.94540409073207
1999	3.3523426193114574
2000	7.802035599253813
2001	-9.97567146951512
2002	-2.7305566247176074
2003	10.255434443443306
2004	14.622085921835122
2005	27.82708072753357
2006	9.820007751530909
2007	-2.2629883488012013
2008	-20.312706856707408
2009	-20.66940841393263
2010	2.3185602427757317
2011	6.773659733675231
2012	4.603710743452609
2013	0.1058620876328149
2014	10.020277398240879
2015	13.541896568633248
2016	14.602966318692822
2017	11.830589887698324
2018	-0.9075629040973467
2019	-9.088322381459108
2020	-20.635374245973196
2021	19.904860672184284
2022	19.969806810324002
2023	-1.438567284812592