Year	annual %
1961	3.5175820027896236
1962	3.6061021458595235
1963	6.358771968276102
1964	4.8772807333479875
1965	-2.7002669588781174
1966	0
1967	13.351828321404241
1968	7.916221558762302
1969	2.596410512711401
1970	12.702711127905062
1971	6.888986664880676
1972	7.485276673390203
1973	11.612868505689036
1974	2.6011499097748896
1975	0.5302111891242163
1976	2.736163247430227
1977	5.9040118422699805
1978	1.8634014508879488
1979	12.224819769670532
1980	-1.6034569351729147
1981	6.329990548913685
1982	-5.978486200321001
1983	-3.9601230102399683
1984	8.393024472356856
1985	-4.613474868146454
1986	7.749907967032783
1987	-6.615019995114196
1988	0.955754872815163
1989	7.438632434891161
1990	5.800002719829905
1991	-2.700003729163697
1992	6.100001909876781
1993	2.1300324213827366
1994	5.099999608521742
1995	2.4999985384687164
1996	4.8000004302096215
1997	-2.1999993686925023
1998	1.3000004515381107
1999	8.799998719272395
2000	-1.6999984160551094
2001	2.0000001467520576
2002	3.199999113732673
2003	0.999999344757299
2004	5.299999704609348
2005	0.7000004024324369
2006	1.8524838719948633
2007	-0.8506543100458259
2008	1.0327942202596745
2009	-1.3860377076358077
2010	2.954672422122414
2011	2.705143029010486
2012	1.4113143817796754
2013	4.734219489565319
2014	5.603514406183081
2015	4.5012004102876375
2016	2.445651796641741
2017	5.353364559651055
2018	3.8123512220851836
2019	-0.5805044945580278
2020	-17.039870837188346
2021	-4.881036195984933
2022	20.01646415522191
2023	8.026408624537538