Year	annual % growth
1971	2.6652730601456938
1972	5.437473101138693
1973	5.464157086095042
1974	-4.358921504780028
1975	-0.3531829655381813
1976	5.02975823502463
1977	4.033630306793114
1978	5.136520658828388
1979	-0.6405521572773551
1980	-2.2565871600195493
1981	4.291124934425184
1982	1.174870554780739
1983	3.2015782995546544
1984	8.097385720009953
1985	4.16890118431688
1986	3.504182248183824
1987	3.6214556745538715
1988	5.7841678063713005
1989	2.317167658287957
1990	1.3265012059976584
1991	0.32685699282002645
1992	3.4674210805846144
1993	2.2787467049467267
1994	4.4667739450143955
1995	3.3513144434314484
1996	4.340760241195667
1997	5.418317218482272
1998	5.912775577620266
1999	4.166579373524087
2000	3.8205447073679437
2001	1.5221721233393453
2002	1.4726831394584252
2003	1.922753915664984
2004	3.844743186491442
2005	2.7528077144266945
2006	3.761055256074357
2007	0.32034418660164476
2008	-2.6833244773059874
2009	-1.0745452665822057
2010	4.313376110779473
2011	2.049027574138634
2012	3.850558030847324
2013	1.4109982732616544
2014	3.3495061803628516
2015	3.542416207710829
2016	1.0584842664596437
2017	2.707577631430013
2018	2.9093593134840603
2019	2.262572114181154
2020	-3.4310901335394846
2021	5.226583622309235