Year	annual % growth
1966	1.9528907430518245
1967	5.765349770667669
1968	1.7931997673976667
1969	3.681225822695893
1970	6.5572900715446565
1971	3.1784135972387446
1972	2.0707763029926127
1973	2.5485398051507104
1974	8.722740894501541
1975	5.421296157317229
1976	-8.889903639108638
1977	3.55253311485086
1978	13.704475726001462
1979	1.186118587671217
1980	-5.361717853294579
1981	-10.51030967941874
1982	-7.860845209325859
1983	2.3155937690129633
1984	3.026915295505134
1985	-2.0033868140668005
1986	-4.251712882917829
1987	1.3263637748305115
1988	-1.0166281506461985
1989	-0.560213934107864
1990	6.534422647045062
1991	-3.1795591445557108
1992	5.382093909536351
1993	-3.9308295202652346
1994	-6.056319406930527
1995	0.23056560705015272
1996	-2.8195127812384158
1997	-3.6284871118155024
1998	-4.768744408272184
1999	3.0890434532559112
2000	-7.110003551405171
2001	-6.522343167527268
2002	-3.721069998733526
2003	-2.969335548619256
2004	-0.8711580031644672
2005	1.1925700169168323
2006	2.760743223974231
2007	7.064674099770627
2008	-0.18587640785902693
2009	-5.307261941957506
2010	5.014747074322884
2011	-4.119848890910703
2012	4.296873589845802
2013	-7.209737325047001
2014	0.9081758665992794
2015	-5.5
2016	8.349206349206355
2017	0.664127356187123
2018	-2.726302512855341
2019	1.0373030121683513
2020	-4.3731490621915015
2021	3.189842056364185
2022	-1.2404961984793914
2023	0.44570502431118086