Year	annual %
1961	-2.93198029126782
1962	7.887575893855669
1963	-1.8927925505704053
1964	-1.6473573688753333
1965	2.1617978614489175
1966	-0.5757868010461777
1967	-2.117686201063549
1968	3.181617321489256
1969	3.8119432848659187
1970	0.6511537080341725
1971	6.480380501322884
1972	0.9771077589666675
1973	4.75532209168918
1974	5.7798891517062145
1975	1.1227544910428406
1976	8.43883542963357
1977	3.7081464367304022
1978	6.208863536485467
1979	7.560421401674304
1980	7.374687919390794
1981	-2.852709711151647
1982	-3.5637452243429664
1983	0.9081814612697912
1984	0.3009170362364415
1985	0.6036312943696629
1986	-0.49750478837236756
1987	-0.7936487001970818
1988	0.20042683732594924
1989	-2.9134243980719248
1990	1.0381228019824817
1991	1.8805447239628137
1992	-5.309932922511777
1993	-5.426295992153825
1994	-11.950629293956098
1995	9.897707488157053
1996	4.140773328567832
1997	2.7047139307778707
1998	2.18184032957123
1999	2.710248010484989
2000	0.8700592594248917
2001	-0.34274788325214445
2002	1.0518201345010851
2003	3.48077973188326
2004	-1.3178567596495014
2005	3.0721733766473136
2006	1.7687506028819513
2007	4.70652994008303
2008	2.6580323082746986
2009	5.890378948443157
2010	-5.651511534482992
2011	5.098213544100361
2012	0.5024244035815855
2013	4.324784114728743
2014	2.8887725086337923
2015	1.4000000085972744
2016	1.8124680784753195
2017	2.510271345446853
2018	1.6678109548465585
2019	-1.7230969983923217
2020	-3.305505469658925
2021	-1.798239889314857
2022	-1.6819839689797789
2023	-1.8638842025483768