Year	annual %
1961	4.29843956416363
1962	4.623470957156741
1963	2.7352964041355676
1964	6.639469909668506
1965	5.244164053426601
1966	2.8121812752393254
1967	-0.3302564854876664
1968	5.668773059708585
1969	7.418102752698758
1970	5.103144544685705
1971	3.1326997381124784
1972	4.300341334202315
1973	4.7774868921738545
1974	0.8900687405872105
1975	-0.8667388942277228
1976	4.949258376654569
1977	3.34721812001672
1978	3.0084928567384566
1979	4.150363340667369
1980	1.4088286357214486
1981	0.5292405565360667
1982	-0.39484077479596635
1983	1.572410169521163
1984	2.822947809979553
1985	2.327935262263665
1986	2.287339221270358
1987	1.402151627420551
1988	3.7072356594959075
1989	3.8965516921444703
1990	5.2550060827801275
1991	5.108261521902108
1992	1.923076559053996
1993	-0.9768498181605167
1994	2.3918920705133075
1995	1.5441464955644477
1996	0.8058228914900099
1997	1.7921608209459094
1998	2.013932785193262
1999	1.8872611539944444
2000	2.9125029636670803
2001	1.6814684809707927
2002	-0.19797383477136066
2003	-0.700116686114356
2004	1.1750881316098685
2005	0.7317071635541907
2006	3.8164419129879974
2007	2.976455131315973
2008	0.95987913356484
2009	-5.693836336402853
2010	4.179882498736575
2011	3.9251927046341137
2012	0.41849759421759813
2013	0.43759130314467143
2014	2.2095434313487203
2015	1.4919315276077185
2016	2.2299998678201547
2017	2.6802311140589126
2018	0.9812326060047383
2019	1.0754716357642309
2020	-3.8267687161929302
2021	3.1638199419457465
2022	1.8062089672435064
2023	-0.30493457574081617