Year	annual % growth
1971	3.3417792045647587
1972	6.423430569880793
1973	6.909263318528531
1974	1.6760137611332055
1975	-1.198180000102596
1976	5.745330551580778
1977	0.07423931232560221
1978	2.860834401379293
1979	1.9002403777022607
1980	-0.5936439978218715
1981	-2.6190219836419573
1982	-0.1522496633691901
1983	0.8253445876697612
1984	3.1824164738966942
1985	2.881413991241459
1986	4.807053999904838
1987	3.1720729466319284
1988	6.010110415717108
1989	3.584966934359329
1990	2.8201919183939737
1991	2.1284122017593177
1992	2.4116620082740923
1993	0.6902356250212591
1994	3.901053063012185
1995	1.592646623920217
1996	0.456056651900667
1997	3.554813495323515
1998	2.0053390875233816
1999	2.390165095459551
2000	2.700221773354116
2001	0.0014526418411264785
2002	1.8837478703062231
2003	0.32243650858347905
2004	2.3705678836486044
2005	1.3264466017651273
2006	1.7638637427917416
2007	3.5749895605311224
2008	-1.3456926053632259
2009	-1.4115109089657807
2010	1.412833332744512
2011	-1.3418159154946352
2012	3.257113236960919
2013	1.0090747213192088
2014	1.6429685068292343
2015	2.376143990063511
2016	1.6411219212963033
2017	1.2598996849184658
2018	1.0222425742806251
2019	2.9645404707116683
2020	-6.600396306234217
2021	5.5749668014421445