Year	annual % growth
1971	8.619096126426683
1972	4.824209951088719
1973	3.388692774363818
1974	0.9097625620022143
1975	8.776680176276102
1976	5.380803715602212
1977	8.633497382482687
1978	6.648285136194147
1979	0.8424564465050679
1980	-5.135991221524904
1981	18.97667023439527
1982	8.636362954143976
1983	5.605094426576244
1984	8.037541466922818
1985	3.274954681025079
1986	-4.629042593449242
1987	-0.978499175165723
1988	4.8899006456860405
1989	0.853752108947404
1990	-0.39003017105964943
1991	-10.409285644076746
1992	-16.8200743951258
1993	-12.38014502040133
1994	1.0443029334780647
1995	-1.6081204692793847
1996	6.907847909130766
1997	2.221909481388053
1998	-0.8889782398760246
1999	5.332307105132088
2000	2.498706352384545
2001	4.18522185257531
2002	2.2831650487875663
2003	5.989152083600331
2004	5.691969633906766
2005	9.493813901088714
2006	13.863845102716184
2007	3.3964334683255686
2008	-2.2193297635419498
2009	3.569512290765033
2010	7.242431533530038
2011	0.4065732778660589
2012	5.156368050095892
2013	2.941839890553254
2014	2.841052980234977
2015	5.173085934961435
2016	3.3625917667492047
2017	1.4610931014878332
2018	0.9649768539313044
2019	0.2921064388243195