Year	annual %
1961	0.6070987037460611
1962	1.104783188585884
1963	1.5412471505301255
1964	1.4958341783314495
1965	1.7353660285383938
1966	1.7960763634349348
1967	1.7186688824135814
1968	1.7389225368048784
1969	1.787307417663726
1970	1.7879564485400579
1971	1.7822644812935522
1972	1.6649440669202988
1973	1.6107239569816585
1974	1.5065038370823771
1975	1.4781846292184895
1976	1.3697225350058062
1977	1.31918976364409
1978	1.2020044977171835
1979	1.1020893960154865
1980	1.0639822113616333
1981	1.0556072118020268
1982	1.1693449097016924
1983	1.202335904839643
1984	1.1377199584202202
1985	1.1346194068992048
1986	1.1414769425272624
1987	1.1493536730559555
1988	1.130196933026383
1989	1.1154093197893786
1990	1.1078048934578817
1991	1.0271806863536597
1992	0.9735061083745933
1993	0.933091659338416
1994	0.8805788375623251
1995	0.8424765291620133
1996	0.8242891575274314
1997	0.7826780443504191
1998	0.7346411710372536
1999	0.6885820954373116
2000	0.6369254900363757
2001	0.489609549704511
2002	0.37629467174281217
2003	0.3397663915272915
2004	0.3017535204475479
2005	0.268990850984153
2006	0.26268564846603226
2007	0.25139468357151884
2008	0.2211499471572438
2009	0.2166162809819241
2010	0.2119319942383271
2011	0.27543631835891347
2012	0.3125017348924075
2013	0.2796729551210575
2014	0.23603414819920943
2015	0.18495908720217358
2016	0.16611722041461974
2017	0.14830463002950012
2018	0.10721189740927173
2019	0.0657174098369353
2020	0.0263443582535956
2021	-0.08332776446250989
2022	-0.18722591413683176
2023	-0.09567356836717522