Year	annual %
1961	-1.3008645513870363
1962	3.4462809326690547
1963	3.675577277644578
1964	2.376494064889954
1965	2.040247986113414
1966	-0.535467826727853
1967	-3.2721464198470045
1968	0.4858303127703181
1969	6.188973513100748
1970	5.0243246168622875
1971	4.927974733117878
1972	0.26823979821975286
1973	1.53793136778053
1974	4.617698828476222
1975	-3.03170104269374
1976	2.26212573351728
1977	-0.04332642268144582
1978	-3.0039931623110903
1979	0.901565342947336
1980	0.8176030891930282
1981	-3.657541470499467
1982	-4.110829144740947
1983	-5.3197099077964936
1984	-0.5458466744065191
1985	-0.8320934573314247
1986	-0.9665555858880168
1987	0.02851250662769189
1988	1.5607759459707893
1989	-0.4860633917092514
1990	-0.44187154650978755
1991	-2.3139868973148054
1992	-2.9923651193576575
1993	-3.464277149850716
1994	-1.6015852193882836
1995	0.6481267854625798
1996	2.3760827149541512
1997	1.4212443130106038
1998	-0.09292087445851394
1999	-0.4032792807271619
2000	0.8065469525048599
2001	1.4845712825759705
2002	3.546807284041307
2003	1.3167884690682854
2004	3.780167724279366
2005	3.194598103099679
2006	3.212223170136056
2007	3.29078380617149
2008	2.331371842046593
2009	0.3784477109384454
2010	3.1147543226603887
2011	1.5872353125426315
2012	0.4753173340265988
2013	2.2551510789053992
2014	2.048948428532711
2015	0.1458781986200819
2016	-1.4407845997614999
2017	-0.18688433550583738
2018	0.07240817971070612
2019	-0.008017072379885803
2020	-4.500358601039636
2021	1.6290194481904763
2022	1.0906810973911405
2023	0.4093739891552559