Year	annual % growth
1967	38.99584449488998
1968	-7.2533175262012435
1969	46.461272998808056
1970	41.76527516737198
1971	1.5351263656184813
1972	-17.584053047850645
1973	5.319928910736721
1974	31.860681302954248
1975	30.773194496183635
1976	18.11285667512425
1977	25.308998251660327
1978	-31.304182441019464
1979	-0.9747233580134349
1980	10.792827993940634
1981	-8.025636381872118
1982	9.411637876299011
1983	-16.011645336228867
1984	19.80553477619307
1985	8.180922583606204
1986	0.2547939239187542
1987	-4.122635661382148
1988	6.358592735862217
1989	18.997273903382123
1990	1.7401755039461335
1991	2.6642022720628944
1992	1.3879228214331363
1993	-3.8766820047625004
1994	0.8078953742397772
1995	7.891172920510314
1996	4.32687451961587
1997	7.369884988714404
1998	17.980324859381525
1999	-2.0186253397334895
2000	1.8123453958878173
2001	9.384870290559803
2002	5.177202089482137
2003	18.636294353029385
2004	9.385062505813792
2005	-0.909112584858704
2006	8.303085175057006
2007	13.379194475372145
2008	22.875523489851048
2009	-2.668660113593461
2010	-1.7402740560218604
2011	10.284040718187228
2012	-0.9321776608961727
2013	5.00067357204091
2014	-2.196842223266117
2015	5.622336848945466
2016	8.086002839492636
2017	3.022030865673628
2018	5.253676947489041
2019	-0.21027867339621764
2020	-11.911975169458628
2021	13.850335641952128
2022	-6.48634524977696
2023	6.790298805875324