Year	annual %
1961	2.494936211007598
1962	2.314480549856569
1963	2.361329466883234
1964	2.3968374185282926
1965	2.198783822990009
1966	2.052458318730288
1967	2.1031812631404136
1968	2.0395277283719935
1969	1.9084976370583888
1970	1.666806353650685
1971	1.784405598504918
1972	2.1343747363462597
1973	2.1429654471395168
1974	2.19020261219201
1975	2.2382760607782473
1976	2.186666968440292
1977	2.1169307923068317
1978	1.999033682415586
1979	1.7817033451262603
1980	1.6196519856874971
1981	1.349730521846098
1982	1.2433596668026041
1983	1.207770027811648
1984	1.1759921678207377
1985	1.126687670759381
1986	1.090629670037771
1987	1.0622744563401483
1988	0.9875172458423407
1989	0.5828760124694838
1990	0.2881361040056589
1991	0.09648279073016397
1992	-0.17828790418035112
1993	-0.10879338486759593
1994	-0.06466039220505593
1995	-0.18760652893075758
1996	-0.2522806795415562
1997	-0.2252614963722266
1998	-0.21514416346806797
1999	-0.2093553108754378
2000	-0.6088820788415461
2001	-0.6953050421626301
2002	-0.5530311967051915
2003	-0.23861674130985477
2004	-0.19977380678970746
2005	-0.18436477369999693
2006	-0.15513815117469676
2007	-0.2465114913535018
2008	-0.22438564402045813
2009	-0.09267949489168359
2010	-0.2973399453142065
2011	-0.17602534194276132
2012	-0.20047017295283354
2013	-0.18903402133499014
2014	-0.1827075570906942
2015	-0.18682979377074105
2016	-0.1849695783439813
2017	-0.14419063910791863
2018	-0.0596286922040008
2019	0.030923411073317197
2020	-0.016217845977578804
2021	-0.5466796501395379
2022	-1.0509091455324153
2023	0.3586551615714342