Year	annual %
1961	5.083790462830223
1962	-1.898075191529415
1963	3.4334558796801105
1964	-1.2720567178070183
1965	4.977166541146616
1966	5.319507727602414
1967	3.807718306235472
1968	0.7458980585088142
1969	4.222625431255466
1970	4.246805292922076
1971	1.3028295065553124
1972	-1.2325859643070771
1973	5.875696652529982
1974	0.8744083010257242
1975	1.7956986023207406
1976	5.422575828445275
1977	2.8162814057675973
1978	-4.970140607703101
1979	-1.3781583880863337
1980	-0.3834666383514218
1981	-1.7607738784482478
1982	-6.059434767302605
1983	-6.602598287215187
1984	-2.120236160083195
1985	1.8012454010495276
1986	2.7805423269723804
1987	0.9501836463063285
1988	-1.2249741033120927
1989	-0.3400284557763058
1990	1.2344896660609948
1991	1.2027304134407615
1992	1.4614774725097703
1993	1.2696461260689915
1994	0.937053884636768
1995	1.0073085547592768
1996	1.3542639729512587
1997	3.5082813453650203
1998	3.356832533535737
1999	0.909986228108977
2000	0.4743611139444823
2001	-0.5072746575860521
2002	0.27334098911330784
2003	0.12017547707836229
2004	1.1356910146494386
2005	1.5541072737593282
2006	2.268749110011555
2007	2.3623298835174182
2008	3.673999925080622
2009	1.9122337991331193
2010	2.2287276483472027
2011	3.452997635874368
2012	2.8889482132506714
2013	4.215041416965676
2014	3.743383423773622
2015	3.5575217849229404
2016	1.8099113632523256
2017	3.1507936052791905
2018	2.7613340045702586
2019	2.175758906627152
2020	-9.081961803639473
2021	4.091740497076174
2022	2.140750997073198
2023	0.9033729332803802