Year	Percent
1950	1.561
1951	1.597
1952	1.661
1953	1.713
1954	1.754
1955	1.79
1956	1.822
1957	1.855
1958	1.89
1959	1.928
1960	1.966
1961	2.003
1962	2.034
1963	2.055
1964	2.069
1965	2.077
1966	2.084
1967	2.101
1968	2.133
1969	2.179
1970	2.232
1971	2.28
1972	2.315
1973	2.33
1974	2.326
1975	2.311
1976	2.295
1977	2.285
1978	2.286
1979	2.297
1980	2.31
1981	2.319
1982	2.318
1983	2.301
1984	2.272
1985	2.235
1986	2.198
1987	2.162
1988	2.126
1989	2.091
1990	2.057
1991	2.021
1992	1.987
1993	1.958
1994	1.933
1995	1.91
1996	1.886
1997	1.859
1998	1.828
1999	1.792
2000	1.754
2001	1.715
2002	1.677
2003	1.64
2004	1.603
2005	1.567
2006	1.53
2007	1.491
2008	1.445
2009	1.394
2010	1.339
2011	1.287
2012	1.24
2013	1.204
2014	1.178
2015	1.158
2016	1.138
2017	1.116
2018	1.092
2019	1.065
2020	1.037
2021	1.01
2022	0.983
2023	0.955
2024	0.927
2025	0.899
2026	0.87
2027	0.841
2028	0.811
2029	0.78
2030	0.749
2031	0.718
2032	0.687
2033	0.655
2034	0.623
2035	0.59
2036	0.559
2037	0.528
2038	0.499
2039	0.472
2040	0.446
2041	0.42
2042	0.395
2043	0.372
2044	0.349
2045	0.326
2046	0.305
2047	0.283
2048	0.262
2049	0.241
2050	0.221
2051	0.2
2052	0.18
2053	0.159
2054	0.138
2055	0.117
2056	0.096
2057	0.076
2058	0.055
2059	0.035
2060	0.015
2061	-0.005
2062	-0.024
2063	-0.043
2064	-0.063
2065	-0.082
2066	-0.101
2067	-0.119
2068	-0.136
2069	-0.152
2070	-0.167
2071	-0.182
2072	-0.196
2073	-0.209
2074	-0.222
2075	-0.235
2076	-0.247
2077	-0.258
2078	-0.268
2079	-0.278
2080	-0.288
2081	-0.297
2082	-0.305
2083	-0.313
2084	-0.32
2085	-0.327
2086	-0.334
2087	-0.34
2088	-0.346
2089	-0.352
2090	-0.358
2091	-0.363
2092	-0.368
2093	-0.372
2094	-0.376
2095	-0.379
2096	-0.381
2097	-0.383
2098	-0.385
2099	-0.386