Year	annual % growth
1966	-11.717349039744008
1967	18.622058307233758
1968	29.593609704513
1969	-4.261590422166833
1970	4.1713289025975655
1971	9.997315678979817
1972	-2.2233099623648656
1973	-9.320338246258544
1974	2.094240927366542
1975	-6.342787104183884
1976	15.302596383951467
1977	-12.321921757305816
1978	17.958959541110886
1979	-1.7158036027158943
1980	6.147033064169122
1981	-26.794279777527947
1982	39.4718034464579
1983	-13.406686270648677
1984	9.837005166213658
1985	13.428033988454558
1986	34.19917168569236
1987	-23.53305397384615
1988	33.426528063388304
1989	6.3664224627590045
1990	-6.66428483625306
1991	21.750000045679442
1992	-34.23664127837952
1993	-6.322556554958936
1994	59.75599041795002
1995	-41.00808711433197
1996	73.58253451570448
1997	-22.888048795119502
1998	26.81877341111074
1999	-14.679977366421468
2000	-12.161422695788588
2001	19.061656841365917
2002	4.279081561817705
2003	20.306460724086435
2004	4.466205914113502
2005	-11.101968157623475
2006	21.066628312574792
2007	-20.02126146405648
2008	18.621875974895374
2009	23.94626145388321
2010	1.1064377019779954
2011	6.660271967189146
2012	-7.836855706153841
2013	17.823780896724543
2014	-2.307299164198909
2015	14.020755772457122
2016	-18.60792502362156
2017	19.506321718429277
2018	4.472000038575004
2019	-3.923686762339699
2020	-7.130209547235822
2021	19.03804843119316
2022	-12.74466846727843
2023	6.486815283209609