Year	annual % growth
1972	2.955796382200276
1973	-10.112013092418579
1974	5.475155550005326
1975	1.1728687623546108
1976	3.9397439090202084
1977	-2.413165105470668
1978	-5.660322900090691
1979	2.6622207819665107
1980	-4.285309278251219
1981	6.031792522095671
1982	-4.729556548456841
1983	-9.914053403642413
1984	6.635748691952955
1985	7.259260043110146
1986	3.026019664970164
1987	3.6576346764477137
1988	-7.7077831190062795
1989	-3.41461298847841
1990	-1.4185695675321597
1991	-0.18681998212086626
1992	-0.8895362892669283
1993	-3.516057969459027
1994	-13.574576693694524
1995	5.962621789446516
1996	-1.2858792397768326
1997	4.071122012442174
1998	1.1923650500593084
1999	10.15354838161349
2000	-2.024979658893912
2001	7.930831965394461
2002	-5.193309588416369
2003	6.30285852906502
2004	-0.8246648636521456
2005	3.65193009939982
2006	-0.04351217713671929
2007	0.9992415840290931
2008	-2.664195595008735
2009	4.958775943607648
2010	1.4038492248940884
2011	-4.248523772236183
2012	-1.7087613408964302
2013	3.224452759169779
2014	6.276718636922226
2015	5.466185767270275
2016	5.353784325256171
2017	5.492945444137803
2018	1.7701944782033934
2019	1.4076504063865087
2020	-0.17201325647242527
2021	2.4634847133212787