Year	annual % growth
1961	36.99422220470095
1962	-40.08439270431426
1963	-35.211265903185605
1964	-9.782608531792818
1965	10.84337329265415
1966	52.72713891498131
1967	38.88882591821579
1968	-5.99993809767588
1969	-6.079078182332282
1970	-6.148853013942386
1971	17.241427415772364
1972	17.05883333787193
1973	17.08529653629651
1974	16.952723908561126
1975	17.981993336704832
1976	-23.328382950330933
1977	-19.47249994167126
1978	-20.65491548708512
1979	7.301672163839854
1980	49.11218411069157
1981	80.95265319345151
1982	36.841870479219665
1983	-15.477216082364308
1984	-11.07438016876148
1985	-5.018587997129984
1986	-35.48596926228433
1987	-31.142559635414074
1988	-14.684311411105128
1989	-18.588631842024654
1990	14.740054823798303
1991	25.560484987665873
1992	0.18870034915991596
1993	32.07755219424283
1994	75.1905228720299
1995	-31.400491269296197
1996	-3.3048979792532975
1997	-36.69052953148804
1998	-0.35773567420643815
1999	22.42250465901911
2000	19.01602390208437
2001	-1.3452783574153813
2002	1.2204222915438834
2003	13.48384823299142
2004	0.5113367382338652
2005	4.661517548156112
2006	7.568919145071334
2007	81.13480398300547
2008	-9.797509842756497
2009	4.010614679474429
2010	60.945120479787505
2011	-37.62385236523159
2012	37.73699272536973
2013	9.482971747523308
2014	14.33127234956602
2015	23.65825947246141
2016	-18.088239819603785
2017	-34.89202436820523
2018	-27.750658646323345
2019	-9.549563671663165
2020	-21.110130599076953
2021	13.804492155584015
2022	9.66457009880483
2023	8.466085127676763