Year	Percent
1950	1.035
1951	1.06
1952	1.103
1953	1.133
1954	1.156
1955	1.177
1956	1.199
1957	1.227
1958	1.263
1959	1.309
1960	1.36
1961	1.414
1962	1.464
1963	1.505
1964	1.537
1965	1.565
1966	1.596
1967	1.643
1968	1.714
1969	1.81
1970	1.915
1971	2.016
1972	2.103
1973	2.172
1974	2.222
1975	2.262
1976	2.3
1977	2.333
1978	2.358
1979	2.376
1980	2.364
1981	2.322
1982	2.318
1983	2.41
1984	2.576
1985	2.799
1986	3.002
1987	2.983
1988	2.593
1989	1.882
1990	1.022
1991	0.221
1992	-0.346
1993	-0.554
1994	-0.378
1995	-0.015
1996	0.357
1997	0.826
1998	1.514
1999	2.363
2000	3.285
2001	4.129
2002	4.636
2003	4.644
2004	4.228
2005	3.625
2006	3.059
2007	2.637
2008	2.393
2009	2.324
2010	2.333
2011	2.325
2012	2.294
2013	2.262
2014	2.225
2015	2.19
2016	2.165
2017	2.141
2018	2.111
2019	2.076
2020	2.038
2021	2.002
2022	1.969
2023	1.94
2024	1.913
2025	1.887
2026	1.862
2027	1.835
2028	1.807
2029	1.778
2030	1.748
2031	1.718
2032	1.688
2033	1.658
2034	1.628
2035	1.598
2036	1.568
2037	1.538
2038	1.507
2039	1.476
2040	1.444
2041	1.413
2042	1.381
2043	1.35
2044	1.319
2045	1.288
2046	1.257
2047	1.226
2048	1.196
2049	1.167
2050	1.139
2051	1.11
2052	1.081
2053	1.052
2054	1.022
2055	0.992
2056	0.962
2057	0.933
2058	0.904
2059	0.876
2060	0.848
2061	0.82
2062	0.793
2063	0.765
2064	0.738
2065	0.71
2066	0.683
2067	0.656
2068	0.629
2069	0.603
2070	0.576
2071	0.55
2072	0.524
2073	0.498
2074	0.472
2075	0.446
2076	0.42
2077	0.394
2078	0.37
2079	0.346
2080	0.323
2081	0.3
2082	0.278
2083	0.256
2084	0.235
2085	0.215
2086	0.194
2087	0.175
2088	0.155
2089	0.136
2090	0.118
2091	0.099
2092	0.082
2093	0.065
2094	0.048
2095	0.032
2096	0.017
2097	0.002
2098	-0.013
2099	-0.027