Year	annual %
1961	1.359574511924876
1962	0.5789720210138967
1963	3.5749010464338937
1964	5.008485431516291
1965	-4.788008238381607
1966	-2.1830018179117587
1967	5.55485816003069
1968	1.1697298384489017
1969	4.218131001197349
1970	2.8585582300725463
1971	-0.5857058943536231
1972	-2.743920031498547
1973	0.99613555452855
1974	-1.0740288875055768
1975	6.733780786300073
1976	-0.5580621144321469
1977	4.91209573102185
1978	3.3988765443044144
1979	-7.321991040928111
1980	4.349374092568098
1981	3.6208627302913357
1982	1.1625921739020413
1983	4.892732989224129
1984	1.4979079489541505
1985	2.9142065932040992
1986	2.4605052876367495
1987	1.6919620913400877
1988	7.259166022955469
1989	3.6738625586501428
1990	3.2978540660614044
1991	-1.0451054674030331
1992	3.3168659337294173
1993	2.627465860668778
1994	4.525133813892907
1995	5.45294586121274
1996	5.471108102489168
1997	2.071873277418291
1998	4.1989211603509915
1999	6.851333406284084
2000	1.9659524371446082
2001	2.945319360727609
2002	1.975907983767783
2003	6.016520564401787
2004	6.1326061667966485
2005	6.20601103217038
2006	6.426044713297713
2007	6.093625781430262
2008	1.630780589177789
2009	6.371709388416761
2010	7.013174581001834
2011	3.818074312083496
2012	4.060822384365693
2013	5.014611864384193
2014	6.086180227202306
2015	6.72106763062213
2016	6.980989701320993
2017	5.568333513578835
2018	5.302408678572988
2019	2.8118731022565697
2020	-6.673470546581896
2021	8.818605843088932
2022	6.2615994901934044
2023	6.721381414420378