Year	annual % growth
1961	-4.740518962075939
1962	-7.647983237297069
1963	-5.388542257515468
1964	40.287769784172696
1965	15.128205128204968
1966	13.73422420193026
1967	24.249347258485642
1968	20.173364854215833
1969	11.650273224044199
1970	7.713390759592116
1971	19.501999272992165
1972	16.288973384030243
1973	26.994726972217293
1974	79.6625705457474
1975	51.15324978251644
1976	-2.2165315897218534
1977	13.346830582703546
1978	-30.301754469379944
1979	-24.61305886137032
1980	2.005821365486497
1981	-5.230637625847066
1982	-10.776048284625247
1983	38.74601231143876
1984	-31.277923182312094
1985	-6.940916606044425
1986	-12.932424707194585
1987	10.001186454642877
1988	-14.896085251239512
1989	19.419739430930605
1990	32.21551750047277
1991	33.36483307396884
1992	-9.361417790368776
1993	-19.81682341389083
1994	-39.57596262225722
1995	-1.2391419519189526
1996	17.668531871892455
1997	-6.384609495256129
1998	4.715785270898067
1999	-6.137328206927066
2000	15.933560004385527
2001	18.25722393618601
2002	17.872327602272378
2003	18.769693716939813
2004	9.895051828198191
2005	-1.490277743504592
2006	4.134308333444324
2007	5.826693767145869
2008	5.774805032576637
2009	-1.6532419623565602
2010	2.3437179792284297
2011	-9.30196452602189
2012	-21.06507804171821
2013	-18.29638482063136
2014	1.440581445505316
2015	-21.676652558618898
2016	5.918469955391075
2017	6.803380424588525
2018	-27.206777233154497
2019	-31.61088539902073
2020	-29.7104309184472
2021	24.09477689100872
2022	7.485982079783653
2023	1.6399999999982384