Year	annual %
1961	1.1844797749329672
1962	1.1316910980734747
1963	1.0875423399428854
1964	1.0245621881127533
1965	1.0799358432962265
1966	1.0010915324510705
1967	0.9198232942156466
1968	0.8408154240804038
1969	0.7773760461693371
1970	0.7233680379147103
1971	0.6507232395126579
1972	0.6123294667274308
1973	0.6181806356782431
1974	0.5758455988697335
1975	0.5113086614223903
1976	0.4542170038221798
1977	0.41541419245581324
1978	0.38855998552537585
1979	0.34042526943143514
1980	0.25550800106120164
1981	0.18208928874352637
1982	0.19603354742375245
1983	0.21194050964564326
1984	0.165698313312987
1985	0.10743561205148922
1986	0.07536552655489004
1987	0.04074420527480527
1988	0.007591620535023935
1989	-0.021816044749996877
1990	-0.01159650396735401
1991	0.05271152398943002
1992	0.04747523295927181
1993	0.020591066430668548
1994	-0.06594206086954557
1995	-0.11952779939218772
1996	-0.11805092816616991
1997	-0.22531146176058314
1998	-0.27987724592900065
1999	-0.2930565857054006
2000	-0.3532732050933163
2001	-0.06273185894369249
2002	-0.011713431662315088
2003	-0.05258260406171189
2004	-0.053842114261087204
2005	-0.08063800364203644
2006	-0.1286723566641541
2007	-0.16744759426397593
2008	-0.19244892319866835
2009	-0.19970815084214166
2010	-0.23155386706397962
2011	-0.1937216218930331
2012	-0.1848915227877086
2013	-0.20680562217168585
2014	-0.23817967284659858
2015	-0.26173699038727705
2016	-0.27518603419942167
2017	-0.28945532622879
2018	-0.2972055225545631
2019	-0.35545227141570024
2020	-0.48412108090391825
2021	-0.6103939958318136
2022	-0.6589221812095616
2023	-0.6203265550749535