Year	annual %
1961	2.337670858560656
1962	2.2308315055784873
1963	2.2154249509097195
1964	2.1999571077922555
1965	2.1980928209240336
1966	2.204218609327969
1967	2.2219714324817175
1968	2.220496585169926
1969	2.259674106263987
1970	2.5145121026823305
1971	2.686149132800785
1972	2.6466573188163274
1973	2.5934059053510152
1974	2.5461168898447277
1975	2.6324901090382204
1976	2.7590377671569
1977	2.7523420088226995
1978	2.763836444498205
1979	2.778764294939564
1980	2.827620762761959
1981	2.8733485212649716
1982	2.848688265742841
1983	2.781162404634081
1984	2.7031327973459827
1985	2.6211921978330643
1986	2.543717606196822
1987	2.4498231237282213
1988	2.363672630252354
1989	2.2796963264759658
1990	2.2911563836885107
1991	2.1297309630805126
1992	0.7914592181168282
1993	0.7852442975516833
1994	0.618741263932115
1995	0.4872311858785427
1996	0.3598928762662844
1997	0.2611352915070137
1998	0.19710243243760223
1999	0.1876788304284183
2000	0.07677890312365898
2001	-0.4071482665788194
2002	-3.505894110997696
2003	-3.550555717184352
2004	-3.6610899906828296
2005	-3.7452169965475943
2006	-3.850120465021193
2007	-3.936335881679552
2008	-3.994466494184279
2009	-4.010276163822864
2010	-3.318046820070291
2011	0.7045954045957193
2012	0.565132897122641
2013	0.5526169638720346
2014	0.5867304375554357
2015	0.6479104486868915
2016	0.6803998297339865
2017	0.7152344339924321
2018	0.7613329825300239
2019	0.794404405563528
2020	0.8296088377553914
2021	0.7552103862469622
2022	0.6941116476633702
2023	0.8573017154350314