Year	Percent
1950	1.314
1951	1.403
1952	1.555
1953	1.657
1954	1.716
1955	1.74
1956	1.736
1957	1.709
1958	1.666
1959	1.611
1960	1.547
1961	1.474
1962	1.394
1963	1.307
1964	1.216
1965	1.122
1966	1.032
1967	0.958
1968	0.911
1969	0.892
1970	0.889
1971	0.89
1972	0.892
1973	0.898
1974	0.906
1975	0.917
1976	0.931
1977	0.943
1978	0.948
1979	0.948
1980	0.944
1981	0.942
1982	0.941
1983	0.94
1984	0.939
1985	0.939
1986	0.942
1987	0.945
1988	0.951
1989	0.958
1990	0.963
1991	0.966
1992	0.98
1993	1.016
1994	1.073
1995	1.14
1996	1.205
1997	1.238
1998	1.221
1999	1.155
2000	1.063
2001	0.97
2002	0.9
2003	0.868
2004	0.872
2005	0.896
2006	0.918
2007	0.923
2008	0.904
2009	0.861
2010	0.806
2011	0.755
2012	0.716
2013	0.695
2014	0.691
2015	0.697
2016	0.703
2017	0.707
2018	0.709
2019	0.709
2020	0.708
2021	0.707
2022	0.705
2023	0.701
2024	0.694
2025	0.686
2026	0.676
2027	0.665
2028	0.652
2029	0.636
2030	0.618
2031	0.6
2032	0.582
2033	0.565
2034	0.547
2035	0.53
2036	0.513
2037	0.496
2038	0.48
2039	0.466
2040	0.451
2041	0.438
2042	0.426
2043	0.416
2044	0.408
2045	0.402
2046	0.397
2047	0.392
2048	0.388
2049	0.385
2050	0.382
2051	0.379
2052	0.377
2053	0.377
2054	0.377
2055	0.377
2056	0.377
2057	0.377
2058	0.377
2059	0.375
2060	0.374
2061	0.372
2062	0.369
2063	0.366
2064	0.362
2065	0.357
2066	0.352
2067	0.346
2068	0.339
2069	0.331
2070	0.323
2071	0.313
2072	0.304
2073	0.295
2074	0.286
2075	0.277
2076	0.268
2077	0.26
2078	0.251
2079	0.243
2080	0.235
2081	0.227
2082	0.22
2083	0.213
2084	0.208
2085	0.202
2086	0.198
2087	0.193
2088	0.19
2089	0.187
2090	0.185
2091	0.183
2092	0.181
2093	0.178
2094	0.176
2095	0.173
2096	0.169
2097	0.166
2098	0.162
2099	0.158