Year	annual %
1961	1.374669482604034
1962	0.8164154727516006
1963	3.7674660384722642
1964	3.8902447742121637
1965	1.0092948053417103
1966	0.13492207862985595
1967	-1.0587939576976737
1968	4.901308554983984
1969	-2.357349996043709
1970	0.824444869734549
1971	-5.68077010717262
1972	2.8550079435865996
1973	7.599211066478389
1974	-4.93935339643734
1975	0.9249217851487401
1976	11.861445255389214
1977	10.440241765037001
1978	-0.3702346617538268
1979	-4.3085221267344025
1980	4.534349315117964
1981	-2.3134117776474596
1982	-1.0906771829744315
1983	-4.398706340901754
1984	4.297795195795118
1985	-2.5726782603704947
1986	2.855091192933102
1987	-1.3260962978982604
1988	-0.7420548280879302
1989	2.37108705239757
1990	-2.424357648090165
1991	2.0933298447536117
1992	-0.655198853307752
1993	1.4976073968883128
1994	-2.309302276577853
1995	-1.1036575035965939
1996	2.3399863902206874
1997	0.3286169747206884
1998	1.78756557627662
1999	-3.4519293011300363
2000	3.8785682279039406
2001	1.7710739715850963
2002	1.4815335671065242
2003	1.7645343057015168
2004	2.397985400869601
2005	3.5967061109488867
2006	6.1558111779182525
2007	3.671846914589196
2008	0.7381520722576198
2009	-2.051580424346355
2010	1.519047369473924
2011	1.538964754774284
2012	2.260292064579346
2013	1.818863742977527
2014	0.6769531755818718
2015	2.0385710441524623
2016	2.171480194019182
2017	3.387606555117898
2018	3.74511090719092
2019	3.0191987770622717
2020	-9.125617041386818
2021	15.052108812809223
2022	4.170875700818669
2023	3.2535661176147386