Year	annual %
1961	3.3611205264918027
1962	2.305442724975677
1963	11.652415018552503
1964	10.60301904246495
1965	12.508527377134754
1966	7.3646504339324395
1967	7.887874863413273
1968	13.166192024010414
1969	11.780154514772633
1970	8.373203231266487
1971	6.212169305142439
1972	13.250809552833914
1973	5.279866988976181
1974	7.813391373205377
1975	3.005142983867401
1976	16.249601463671738
1977	1.4685889490403383
1978	-2.8223184757981556
1979	-0.9929412861148847
1980	-4.87038173486593
1981	-2.693751618920288
1982	11.589189443512822
1983	4.4584715116418465
1984	-0.5441098594312308
1985	3.8649129866196006
1986	-2.9451506249923938
1987	0.08842365376196426
1988	0.7641437692323052
1989	2.4418396810268916
1990	10.9407688752476
1991	0.521249549538112
1992	4.457503700808246
1993	1.4995431650223168
1994	2.0393889884681755
1995	2.5385569817020013
1996	6.219396257073299
1997	3.8612901935286175
1998	5.8885564483143185
1999	4.281499042622045
2000	6.167476384665463
2001	2.8694088510919755
2002	3.251860067703575
2003	2.2130893445878854
2004	7.635820054086778
2005	4.42062941270585
2006	5.327419530323425
2007	6.031942918059656
2008	3.6889640203588385
2009	2.505556335763387
2010	5.355577403114779
2011	-1.0263540649752798
2012	3.5342357771358337
2013	0.41730513412090886
2014	1.8445917953699507
2015	0.6941577447658034
2016	5.367841544599415
2017	3.1389469382903314
2018	1.82359039045528
2019	1.110234850045643
2020	-4.335204817872153
2021	6.2140890950333585
2022	4.414321615074741
2023	2.8028127722170524