Year	Percent
1950	1.242
1951	1.258
1952	1.285
1953	1.302
1954	1.312
1955	1.318
1956	1.322
1957	1.328
1958	1.337
1959	1.349
1960	1.361
1961	1.369
1962	1.368
1963	1.353
1964	1.324
1965	1.285
1966	1.244
1967	1.205
1968	1.173
1969	1.148
1970	1.127
1971	1.103
1972	1.066
1973	1.008
1974	0.93
1975	0.843
1976	0.76
1977	0.687
1978	0.628
1979	0.584
1980	0.548
1981	0.516
1982	0.495
1983	0.495
1984	0.514
1985	0.545
1986	0.578
1987	0.607
1988	0.629
1989	0.644
1990	0.654
1991	0.665
1992	0.671
1993	0.666
1994	0.65
1995	0.628
1996	0.603
1997	0.583
1998	0.572
1999	0.57
2000	0.573
2001	0.575
2002	0.567
2003	0.546
2004	0.51
2005	0.468
2006	0.426
2007	0.389
2008	0.362
2009	0.343
2010	0.33
2011	0.317
2012	0.306
2013	0.298
2014	0.292
2015	0.289
2016	0.287
2017	0.285
2018	0.284
2019	0.282
2020	0.281
2021	0.28
2022	0.276
2023	0.269
2024	0.258
2025	0.244
2026	0.229
2027	0.214
2028	0.198
2029	0.181
2030	0.163
2031	0.144
2032	0.125
2033	0.104
2034	0.082
2035	0.06
2036	0.038
2037	0.016
2038	-0.004
2039	-0.023
2040	-0.042
2041	-0.059
2042	-0.075
2043	-0.089
2044	-0.1
2045	-0.109
2046	-0.118
2047	-0.125
2048	-0.131
2049	-0.137
2050	-0.141
2051	-0.145
2052	-0.147
2053	-0.149
2054	-0.15
2055	-0.15
2056	-0.15
2057	-0.148
2058	-0.145
2059	-0.141
2060	-0.136
2061	-0.131
2062	-0.126
2063	-0.12
2064	-0.114
2065	-0.108
2066	-0.103
2067	-0.097
2068	-0.093
2069	-0.09
2070	-0.088
2071	-0.087
2072	-0.086
2073	-0.087
2074	-0.09
2075	-0.094
2076	-0.098
2077	-0.102
2078	-0.106
2079	-0.111
2080	-0.115
2081	-0.119
2082	-0.123
2083	-0.127
2084	-0.129
2085	-0.131
2086	-0.132
2087	-0.133
2088	-0.134
2089	-0.133
2090	-0.133
2091	-0.132
2092	-0.131
2093	-0.13
2094	-0.13
2095	-0.13
2096	-0.129
2097	-0.129
2098	-0.129
2099	-0.129