Year	annual % growth
1971	3.910332874166528
1972	6.205863111638337
1973	6.767220922291358
1974	-0.08470260872070412
1975	0.2611892120926882
1976	7.5075790173001025
1977	6.596106928174976
1978	6.23143897227169
1979	0.11129206609317066
1980	2.87480852679127
1981	-2.4483850087366505
1982	-1.3028741657151528
1983	-3.0531647894146516
1984	0.10093155446209323
1985	-1.2506902350402669
1986	7.991437130238751
1987	-3.3039012020330887
1988	3.63998232248251
1989	-2.1002700355270747
1990	-0.6408681859469709
1991	2.5786652234439202
1992	3.627485979793306
1993	4.902859285734863
1994	10.2706772943842
1995	2.415794856251182
1996	-1.4166532574828778
1997	2.202369485875707
1998	-2.355965010206347
1999	-8.217611601999437
2000	-1.8458309187349613
2001	0.5845016529581812
2002	0.5323871958554207
2003	1.0144488877695323
2004	4.126681553804673
2005	3.945933168568885
2006	4.907809552041911
2007	7.427944536385837
2008	2.9005075450804867
2009	3.1734758288059766
2010	3.593749258985099
2011	3.695984111664984
2012	4.9825731771720285
2013	5.5300178628641135
2014	4.343527388081682
2015	3.2760898034489117
2016	1.4883377618965028
2017	0.059939918572851525
2018	-0.009646279496735133
2019	1.9399543742475203
2020	-6.728608539357978
2021	6.428487749565036