Year	annual % growth
1971	4.574475321476612
1972	6.409575926485658
1973	5.985022396888411
1974	2.0440199051541015
1975	0.029544732899069004
1976	4.473615711312348
1977	4.652629577913373
1978	0.39703145325398737
1979	5.019343096596444
1980	0.7937874411590116
1981	-0.8031220152546865
1982	1.9330095680256392
1983	3.627654261520405
1984	0.16175283747404023
1985	2.183253640984688
1986	2.7385127699498355
1987	1.8884107752612493
1988	3.9097740870274436
1989	3.830069818533289
1990	4.481452876591007
1991	2.9393006224081972
1992	2.0048996009433466
1993	-0.0688901223475682
1994	2.4144665542050063
1995	2.152307129765262
1996	2.1946805029232337
1997	1.421119675683542
1998	3.3614146280340975
1999	1.916619048687977
2000	3.691788393622147
2001	0.23305730990156803
2002	2.626579449333704
2003	0.91698222981789
2004	3.002388079351121
2005	1.837224877544557
2006	4.13029465535044
2007	3.400401759071798
2008	1.5550605120108258
2009	-5.057995980543353
2010	1.912501075114136
2011	1.534683417223647
2012	-0.4013744387507501
2013	-0.2392054865067763
2014	0.8770919833959425
2015	0.5354290181498413
2016	3.762289765363974
2017	0.35264930518646054
2018	2.093727384020866
2019	1.505116836138214
2020	-6.595924621780085
2021	3.632276006882094