Year	annual % growth
1961	22.890098906457993
1962	-14.150241826718158
1963	4.37493849729249
1964	3.852243895476988
1965	28.007048727430345
1966	-11.337687082646937
1967	-6.681372703639809
1968	14.511227108748244
1969	-0.1339560090904115
1970	2.7597874277904424
1971	-4.8380026906961575
1972	-1.7903662602483479
1973	-0.3158207860103772
1974	20.68226391676029
1975	19.090692208999883
1976	21.04778788716976
1977	7.157324654166757
1978	4.33954702712964
1979	6.564083271677234
1980	3.614585297861211
1981	6.174173830260131
1982	-10.519703230111759
1983	0.9941149871463182
1984	-5.702127659673707
1985	1.6629061379050967
1986	16.30157356198238
1987	-8.467234075357595
1988	7.105180861316725
1989	7.503941759730637
1990	13.701383354045007
1991	2.721554288371891
1992	9.120364535889365
1993	8.626593009551769
1994	15.144064247813276
1995	-1.8571525867545375
1996	10.282050289545367
1997	13.021713333542536
1998	0.7909824031671775
1999	-3.0100225649675565
2000	7.991698603732786
2001	-5.178506843885032
2002	-6.68436262866669
2003	14.020716208657504
2004	23.44810518588602
2005	15.994714106232323
2006	5.615692521717236
2007	4.780533594562385
2008	8.531288316088848
2009	4.4540934687673115
2010	7.179440497169836
2011	5.8038473311997905
2012	3.6418118879879984
2013	-0.06137786706213433
2014	3.5147887447271273
2015	-0.5999650355602313
2016	-0.24096313293362925
2017	5.255633184982315
2018	-1.0735786456717733
2019	4.601167131327216
2020	-15.400766807112106
2021	13.48873958034747
2022	9.818712796168356
2023	0.6955369716791182