Year	annual %
1961	0.600249326990855
1962	2.83733679491855
1963	2.6089232743809
1964	2.4079632860718
1965	2.23175799688301
1966	2.07825391825284
1967	1.9455380416704
1968	1.8322860030699
1969	1.73729768611086
1970	1.65957892300445
1971	1.58900312538975
1972	1.51639266924615
1973	1.48715050140956
1974	1.51741920004679
1975	1.57717040981088
1976	1.61326195928039
1977	1.62727086648908
1978	1.30684309062206
1979	1.74041911636893
1980	1.68601231607574
1981	1.4819683080138
1982	1.22242818791707
1983	0.919667982370994
1984	1.0457354601341
1985	0.81732139513889
1986	0.764515985971925
1987	0.748099100249826
1988	0.688400517657601
1989	0.765914828413802
1990	0.712313471132199
1991	1.07946362530249
1992	1.31574311449685
1993	1.18554061440712
1994	1.40006449419438
1995	0.859933461061684
1996	1.02276454116174
1997	1.25209760994193
1998	1.05142162473208
1999	1.27124855157122
2000	0.982676166064297
2001	0.790047581068153
2002	0.694240135210974
2003	0.723661765578573
2004	0.627103982385528
2005	0.592099659929956
2006	0.466403525955087
2007	0.455526400702738
2008	0.361630847401639
2009	0.265537672832765
2010	0.237886692890185
2011	0.160140420765724
2012	0.277321025514609
2013	0.242165626741126
2014	0.181022097854624
2015	0.132404330287967
2016	0.0687082325715694
2017	0.0901672663767558
2018	0.0545354541381391
2019	0.0322330642925213
2020	0.00229068020969373
2021	0.0252729878913446
2022	-0.301401216835277
2023	-0.117452949112512