Year	Percent
1950	-0.375
1951	-0.133
1952	0.256
1953	0.479
1954	0.591
1955	0.645
1956	0.697
1957	0.793
1958	0.967
1959	1.225
1960	1.529
1961	1.805
1962	1.958
1963	1.918
1964	1.702
1965	1.392
1966	1.091
1967	0.893
1968	0.863
1969	0.998
1970	1.212
1971	1.41
1972	1.562
1973	1.665
1974	1.713
1975	1.736
1976	1.757
1977	1.748
1978	1.681
1979	1.56
1980	1.411
1981	1.264
1982	1.136
1983	1.038
1984	0.974
1985	0.923
1986	0.87
1987	0.834
1988	0.836
1989	0.871
1990	0.923
1991	0.97
1992	0.991
1993	0.974
1994	0.915
1995	0.839
1996	0.763
1997	0.668
1998	0.534
1999	0.365
2000	0.176
2001	-0.012
2002	-0.167
2003	-0.26
2004	-0.29
2005	-0.282
2006	-0.268
2007	-0.258
2008	-0.253
2009	-0.256
2010	-0.26
2011	-0.258
2012	-0.247
2013	-0.229
2014	-0.204
2015	-0.174
2016	-0.144
2017	-0.121
2018	-0.111
2019	-0.115
2020	-0.127
2021	-0.14
2022	-0.151
2023	-0.156
2024	-0.156
2025	-0.154
2026	-0.154
2027	-0.159
2028	-0.171
2029	-0.19
2030	-0.213
2031	-0.238
2032	-0.263
2033	-0.287
2034	-0.311
2035	-0.334
2036	-0.358
2037	-0.383
2038	-0.408
2039	-0.432
2040	-0.456
2041	-0.48
2042	-0.504
2043	-0.527
2044	-0.551
2045	-0.574
2046	-0.596
2047	-0.617
2048	-0.636
2049	-0.652
2050	-0.666
2051	-0.68
2052	-0.694
2053	-0.708
2054	-0.722
2055	-0.737
2056	-0.751
2057	-0.765
2058	-0.779
2059	-0.793
2060	-0.808
2061	-0.822
2062	-0.836
2063	-0.851
2064	-0.865
2065	-0.88
2066	-0.894
2067	-0.908
2068	-0.923
2069	-0.937
2070	-0.951
2071	-0.964
2072	-0.978
2073	-0.991
2074	-1.004
2075	-1.017
2076	-1.028
2077	-1.039
2078	-1.05
2079	-1.059
2080	-1.067
2081	-1.074
2082	-1.08
2083	-1.086
2084	-1.091
2085	-1.095
2086	-1.097
2087	-1.098
2088	-1.099
2089	-1.098
2090	-1.096
2091	-1.093
2092	-1.088
2093	-1.082
2094	-1.075
2095	-1.065
2096	-1.055
2097	-1.043
2098	-1.029
2099	-1.014