Year	annual % growth
1966	-0.25325363670035017
1967	-1.74547802838255
1968	-3.7790855413878433
1969	7.787879958793681
1970	-5.7302900342079255
1971	42.68249043702079
1972	32.854850376196026
1973	5.977674574637604
1974	15.096212277433608
1975	5.872262775314923
1976	35.41161554576132
1977	3.2589082014541617
1978	5.868163698297835
1979	11.57808124717694
1980	12.05164803562515
1981	12.986727640220778
1982	2.8138075156772544
1983	5.73723665707162
1984	6.524195981575048
1985	3.884306143936442
1986	-0.9119750805735407
1987	2.2900863874313586
1988	3.9059964066272386
1989	19.055621409897384
1990	-21.854272897712207
1991	3.8872144616945263
1992	6.461132813118681
1993	4.920549446337958
1994	8.643548494299807
1995	4.390498687886392
1996	2.699890219891728
1997	7.485723484138333
1998	5.9855107036599975
1999	6.988103787079325
2000	5.739512069898353
2001	6.855428096785587
2002	0.8170699384429696
2003	0.7396200127808896
2004	2.3986847599904735
2005	1.3058961106680442
2006	4.065717431008139
2007	8.683929826317808
2008	4.296621503131732
2009	-0.9739995109625852
2010	7.119451321406771
2011	-0.7079667025378171
2012	1.2382516164042556
2013	0.6884267048656341
2014	0.4597573816160576
2015	-0.6293345782387689
2016	0.40625506666359
2017	1.4684722584200358
2018	1.8471375518162745
2019	-0.8613950670103208
2020	-9.872875352550864
2021	7.551289346539235
2022	5.495643234005158
2023	0.5299264536934913