Year	Percent
1950	-0.361
1951	-0.226
1952	0.04
1953	0.291
1954	0.517
1955	0.71
1956	0.861
1957	0.964
1958	1.017
1959	1.021
1960	0.99
1961	0.942
1962	0.902
1963	0.889
1964	0.906
1965	0.936
1966	0.957
1967	0.96
1968	0.939
1969	0.897
1970	0.844
1971	0.792
1972	0.748
1973	0.717
1974	0.699
1975	0.686
1976	0.672
1977	0.662
1978	0.662
1979	0.671
1980	0.682
1981	0.687
1982	0.687
1983	0.68
1984	0.665
1985	0.647
1986	0.626
1987	0.578
1988	0.483
1989	0.345
1990	0.181
1991	0.015
1992	-0.127
1993	-0.228
1994	-0.286
1995	-0.317
1996	-0.343
1997	-0.377
1998	-0.429
1999	-0.498
2000	-0.574
2001	-0.641
2002	-0.678
2003	-0.668
2004	-0.612
2005	-0.529
2006	-0.442
2007	-0.355
2008	-0.266
2009	-0.181
2010	-0.094
2011	-0.007
2012	0.055
2013	0.069
2014	0.036
2015	-0.025
2016	-0.092
2017	-0.148
2018	-0.182
2019	-0.194
2020	-0.196
2021	-0.2
2022	-0.21
2023	-0.226
2024	-0.248
2025	-0.273
2026	-0.296
2027	-0.315
2028	-0.332
2029	-0.345
2030	-0.355
2031	-0.364
2032	-0.371
2033	-0.374
2034	-0.373
2035	-0.37
2036	-0.365
2037	-0.359
2038	-0.352
2039	-0.344
2040	-0.335
2041	-0.325
2042	-0.317
2043	-0.31
2044	-0.305
2045	-0.301
2046	-0.298
2047	-0.296
2048	-0.296
2049	-0.298
2050	-0.301
2051	-0.305
2052	-0.309
2053	-0.314
2054	-0.32
2055	-0.326
2056	-0.332
2057	-0.337
2058	-0.341
2059	-0.345
2060	-0.347
2061	-0.349
2062	-0.35
2063	-0.349
2064	-0.347
2065	-0.343
2066	-0.339
2067	-0.333
2068	-0.326
2069	-0.318
2070	-0.309
2071	-0.298
2072	-0.288
2073	-0.277
2074	-0.265
2075	-0.254
2076	-0.242
2077	-0.23
2078	-0.218
2079	-0.206
2080	-0.195
2081	-0.183
2082	-0.173
2083	-0.163
2084	-0.155
2085	-0.147
2086	-0.14
2087	-0.134
2088	-0.129
2089	-0.126
2090	-0.123
2091	-0.122
2092	-0.122
2093	-0.122
2094	-0.123
2095	-0.125
2096	-0.127
2097	-0.131
2098	-0.136
2099	-0.142