Year	annual % growth
1972	5.609936853955716
1973	7.5267711986526535
1974	-1.6649459604520018
1975	6.143780293479637
1976	9.984086384366847
1977	15.89620330528534
1978	3.1451158879291228
1979	1.0476982288867447
1980	-1.009257317892036
1981	-14.65414679628367
1982	-7.940302322694919
1983	10.84486272173055
1984	12.019906570383853
1985	3.6281511873277594
1986	12.578390703157666
1987	-1.8691391672666953
1988	2.257557318454161
1989	2.662204809501006
1990	5.177676883831552
1991	2.6993065665098754
1992	10.668638534113768
1993	7.917316070504498
1994	7.513272796261276
1995	3.875538023657896
1996	0.2551016191299311
1997	7.409481607960714
1998	7.141679855530299
1999	-0.31930984549065045
2000	2.0139825742864446
2001	3.6400413953520854
2002	2.4460560648970215
2003	3.873129014114099
2004	3.67666585717474
2005	2.9468736316234043
2006	7.80849976757905
2007	8.035636772306816
2008	4.1433782508143935
2009	-0.3374102166515627
2010	7.3487480177146836
2011	3.5877134547080516
2012	6.213699336996697
2013	2.4466468317499164
2014	3.626734279498251
2015	5.842278046342315
2016	5.297622102025684
2017	2.2207996013025735
2018	1.7630850889639618
2019	2.6995699945691314
2020	-4.702171437975679
2021	4.41139906964041