Year	annual %
1961	-0.7800661422834649
1962	-1.4619086866647397
1963	-1.5458201446192743
1964	-1.474208855072086
1965	-1.413523064835589
1966	-1.5208646394190584
1967	-1.3534987345806435
1968	-1.3199455681132801
1969	-1.6729414434038703
1970	-1.5909048710907494
1971	-1.20883493433269
1972	-1.0083896642383339
1973	-1.021710871738484
1974	-1.0609606591676481
1975	-1.0933720574336232
1976	-1.139288945516175
1977	-1.1854011638387218
1978	-1.2737233745021732
1979	-1.3738435191685934
1980	-1.4751002848449877
1981	-1.1062738232359581
1982	-0.28673852637036173
1983	-0.40025944575393885
1984	-0.47629281584572825
1985	-0.5294456970847509
1986	-0.6010486821257786
1987	-0.6407871195390274
1988	-0.6882482569976085
1989	-0.7477036688827156
1990	-0.8068480146507632
1991	-0.46613809746832296
1992	0.15410967426756098
1993	0.18178214116911148
1994	0.13818926249989869
1995	0.10231512843600768
1996	0.07630305867481228
1997	0.08191848413406379
1998	0.07551673831884924
1999	0.065834187061548
2000	0.10649489960881503
2001	0.35225527979089594
2002	0.6062104550728536
2003	0.7589449693909006
2004	0.6691782932747536
2005	0.6349825770094993
2006	0.6336390717011933
2007	0.7875690856710168
2008	0.529473135136266
2009	-0.18242223065718624
2010	-0.6100140478907673
2011	-0.7219671354992655
2012	-1.0146382396827307
2013	-1.4285939750644616
2014	-1.4218315241778545
2015	-1.22791946585816
2016	-1.0892119168742231
2017	-0.9630280683050085
2018	-0.7792387833503616
2019	-0.5299308764628441
2020	-0.7801301200748084
2021	-1.1844039686984553
2022	-0.5560690956105934
2023	-0.09772324671603429