Year	annual %
1961	2.1866263072864007
1962	2.228978286074815
1963	2.285956242108039
1964	2.229715465049878
1965	0.9951824329435983
1966	0.053532217111537626
1967	-0.05098241399263457
1968	-0.15693396958248973
1969	-0.2608249240270431
1970	-0.1705979026783716
1971	0.7175830584833884
1972	2.881618061717445
1973	4.012248580253565
1974	4.273786163797468
1975	4.24962383226181
1976	4.216965007655397
1977	4.156629559265113
1978	4.057248171422161
1979	3.9239246748733208
1980	3.7057398035880853
1981	3.3054795095028533
1982	1.6378457670631619
1983	0.8055997501439776
1984	0.4259268591606393
1985	0.06665715810173929
1986	-0.33806000822067883
1987	-0.800350537613021
1988	-1.3442235393919015
1989	-1.9021520610280733
1990	-2.490945275663203
1991	-3.085021260355988
1992	0.7376505246575692
1993	1.297270459873188
1994	1.1641626067617314
1995	0.9830434086134263
1996	0.7875734511729812
1997	0.6204148283238795
1998	0.485352357930909
1999	0.3799153336435448
2000	0.27839150925976924
2001	0.1847528745466028
2002	0.7548701228277089
2003	0.7367998504561866
2004	0.7224687671570368
2005	0.767905274046698
2006	0.8383089558246453
2007	-1.602468148906
2008	-1.639620658631238
2009	-1.6958093925487097
2010	-1.7881310789093288
2011	-1.9368133199267472
2012	-0.6097912988920812
2013	-0.4029263986612599
2014	-0.4140270844010628
2015	-0.40557793694442884
2016	-0.36838058916190525
2017	-0.34167184039732357
2018	-0.3694083279738926
2019	-0.45403074754600087
2020	-0.5408835133758473
2021	-0.7363995877553519
2022	-0.757738982703075
2023	-0.6437398560178973