Year	annual %
1961	2.19971634203786
1962	2.1431026480750717
1963	2.0865758839309905
1964	2.0312045965497703
1965	1.916174980233592
1966	1.8910327747694993
1967	1.875460717712187
1968	1.8160059019052426
1969	1.7198434928560573
1970	1.5795958634553955
1971	1.5481387029917926
1972	1.5685481283750562
1973	1.5276838466879497
1974	1.4956579739921096
1975	1.4508439270615412
1976	1.432093373187243
1977	1.4394255012156947
1978	1.4196273218687736
1979	1.386014416164656
1980	1.3710664147049414
1981	1.3793280160201675
1982	1.3747443767848466
1983	1.4477290217720622
1984	1.4537079933604247
1985	1.4182033946947854
1986	1.443682711311567
1987	1.454215845141917
1988	1.4217909026452276
1989	1.1719009468180985
1990	1.149602310394073
1991	1.069504409389637
1992	0.8799933611525717
1993	0.6671721179704235
1994	0.4375542273049149
1995	0.2939998422314005
1996	0.47919563905183793
1997	0.4290188088800875
1998	0.2896042492068034
1999	0.2141218098279154
2000	0.35053252312344796
2001	0.4121332997510052
2002	0.42225494931682306
2003	0.4460289617161095
2004	0.49375082020183925
2005	0.5125415616910658
2006	0.5405985383019782
2007	0.4362203525206638
2008	0.7201017997911379
2009	0.8115938528922726
2010	0.9533732390656411
2011	0.9462545242425762
2012	0.7920963242637526
2013	0.8482293399650445
2014	0.8559034273536383
2015	0.8996869841225674
2016	0.8911263751871985
2017	0.8422477760942968
2018	0.842044305712335
2019	0.8746103261268132
2020	0.6946861920635712
2021	0.7030315113864702
2022	-1.4949487679888165
2023	0.22623297284070532