Year	annual % growth
1972	13.984430051962676
1973	9.45002139512117
1974	5.18024047026519
1975	11.63042798433483
1976	-2.03619845394779
1977	4.323074713101519
1978	0.7506022033790316
1979	1.6866589618220047
1980	5.252031026336667
1981	2.179643879305189
1982	1.9959222120727418
1983	1.1867830146714482
1984	-5.61551652761743
1985	11.049112538111089
1986	11.616801660771031
1987	6.405371039892785
1988	7.402079007680371
1989	3.114868245815245
1990	-7.287810433813576
1991	7.744565478913728
1992	11.84214510224615
1993	5.539200646417726
1994	4.848395479030685
1995	5.575498535441298
1996	6.867621858830205
1997	10.754896309352716
1998	9.506077593471389
1999	3.946231940747907
2000	2.8778849942910085
2001	4.133313969429395
2002	3.3070343005759497
2003	-6.479110569230201
2004	0.6264438586012062
2005	11.429579224385606
2006	8.571096538372075
2007	6.474655355752006
2008	4.656992848594598
2009	4.015378831379209
2010	7.080421203325898
2011	1.0902249141718272
2012	2.89265382381852
2013	2.6455749499120884
2014	6.886638568362116
2015	11.26803337451392
2016	7.293233387924516
2017	2.59287064138249
2018	6.100379023773513
2019	5.0329978296281865
2020	-11.941753299587248
2021	4.892545071024259