Year	Percent
1950	1.665
1951	1.683
1952	1.721
1953	1.759
1954	1.797
1955	1.833
1956	1.868
1957	1.899
1958	1.926
1959	1.95
1960	1.969
1961	1.983
1962	1.993
1963	1.999
1964	1.999
1965	2
1966	2.001
1967	1.988
1968	1.949
1969	1.887
1970	1.816
1971	1.752
1972	1.717
1973	1.727
1974	1.779
1975	1.85
1976	1.918
1977	1.986
1978	2.062
1979	2.139
1980	2.217
1981	2.289
1982	2.334
1983	2.338
1984	2.304
1985	2.25
1986	2.194
1987	2.143
1988	2.097
1989	2.059
1990	2.022
1991	1.983
1992	1.945
1993	1.912
1994	1.884
1995	1.858
1996	1.834
1997	1.806
1998	1.771
1999	1.73
2000	1.686
2001	1.643
2002	1.607
2003	1.584
2004	1.573
2005	1.567
2006	1.56
2007	1.546
2008	1.525
2009	1.495
2010	1.461
2011	1.427
2012	1.394
2013	1.358
2014	1.321
2015	1.283
2016	1.246
2017	1.21
2018	1.177
2019	1.149
2020	1.122
2021	1.095
2022	1.068
2023	1.04
2024	1.011
2025	0.981
2026	0.953
2027	0.924
2028	0.896
2029	0.867
2030	0.84
2031	0.812
2032	0.784
2033	0.756
2034	0.728
2035	0.7
2036	0.672
2037	0.644
2038	0.617
2039	0.59
2040	0.564
2041	0.538
2042	0.512
2043	0.484
2044	0.455
2045	0.426
2046	0.397
2047	0.369
2048	0.342
2049	0.318
2050	0.294
2051	0.27
2052	0.246
2053	0.221
2054	0.195
2055	0.169
2056	0.143
2057	0.117
2058	0.092
2059	0.067
2060	0.043
2061	0.019
2062	-0.004
2063	-0.027
2064	-0.048
2065	-0.069
2066	-0.09
2067	-0.11
2068	-0.129
2069	-0.147
2070	-0.165
2071	-0.182
2072	-0.198
2073	-0.213
2074	-0.227
2075	-0.24
2076	-0.252
2077	-0.264
2078	-0.276
2079	-0.287
2080	-0.298
2081	-0.308
2082	-0.318
2083	-0.328
2084	-0.337
2085	-0.346
2086	-0.354
2087	-0.363
2088	-0.37
2089	-0.378
2090	-0.385
2091	-0.392
2092	-0.399
2093	-0.405
2094	-0.411
2095	-0.416
2096	-0.421
2097	-0.426
2098	-0.431
2099	-0.435