Year	annual % growth
1971	2.9708496229357735
1972	4.157034416761547
1973	3.4380210065872063
1974	3.751542963221155
1975	3.3066245711331987
1976	2.7978416778246356
1977	2.9195389944023873
1978	1.7956099576007745
1979	2.2307885436502914
1980	3.0849146007487604
1981	1.3999137272594027
1982	1.4806552381428304
1983	1.8960980423678109
1984	2.173630789995329
1985	1.9835069155848686
1986	6.406330989662649
1987	9.647154699038325
1988	4.331842816787528
1989	8.156703598000448
1990	6.676530922185009
1991	4.033845866575604
1992	3.2090006614196085
1993	5.233341444099011
1994	0.9834366757854411
1995	4.678548421730724
1996	2.6385534780235247
1997	3.5591462071545124
1998	3.0117771242266826
1999	6.207782495892133
2000	3.7081662657788144
2001	6.830203333744535
2002	3.2834204971395593
2003	2.363707938535512
2004	3.1941493092846542
2005	2.994295380573206
2006	0.09099539355395336
2007	0.40600008702342905
2008	3.208969555431352
2009	4.610582941070305
2010	3.781145106508802
2011	2.8066036954893576
2012	3.839207700574889
2013	4.0523157206469875
2014	1.1343676038329704
2015	1.932110671299256
2016	1.1077282462201197
2017	4.043093814067262
2018	5.417615935399894
2019	2.7741929360265942
2020	7.281245042960265
2021	5.07764645872777
2022	2.6237590380579547
2023	2.53431645619591