Year	Percent
1950	1.111
1951	1.143
1952	1.211
1953	1.285
1954	1.363
1955	1.438
1956	1.512
1957	1.58
1958	1.642
1959	1.696
1960	1.742
1961	1.784
1962	1.824
1963	1.864
1964	1.903
1965	1.905
1966	1.863
1967	1.856
1968	1.957
1969	2.137
1970	2.409
1971	2.684
1972	2.627
1973	1.975
1974	0.799
1975	-0.703
1976	-2.221
1977	-3.24
1978	-3.266
1979	-2.189
1980	-0.41
1981	1.415
1982	2.768
1983	3.379
1984	3.276
1985	2.818
1986	2.384
1987	2.166
1988	2.231
1989	2.555
1990	3.022
1991	3.437
1992	3.516
1993	3.084
1994	2.219
1995	1.11
1996	0.031
1997	-0.616
1998	-0.503
1999	0.369
2000	1.667
2001	2.909
2002	3.688
2003	3.796
2004	3.304
2005	2.539
2006	1.841
2007	1.387
2008	1.254
2009	1.439
2010	1.777
2011	2.082
2012	2.282
2013	2.366
2014	2.335
2015	2.251
2016	2.181
2017	2.138
2018	2.116
2019	2.118
2020	2.129
2021	2.133
2022	2.131
2023	2.126
2024	2.118
2025	2.108
2026	2.097
2027	2.083
2028	2.067
2029	2.047
2030	2.025
2031	2.002
2032	1.978
2033	1.952
2034	1.925
2035	1.897
2036	1.868
2037	1.839
2038	1.81
2039	1.782
2040	1.754
2041	1.726
2042	1.698
2043	1.67
2044	1.641
2045	1.612
2046	1.584
2047	1.558
2048	1.534
2049	1.515
2050	1.497
2051	1.479
2052	1.461
2053	1.441
2054	1.421
2055	1.401
2056	1.381
2057	1.361
2058	1.34
2059	1.32
2060	1.3
2061	1.279
2062	1.257
2063	1.234
2064	1.21
2065	1.185
2066	1.16
2067	1.134
2068	1.108
2069	1.08
2070	1.053
2071	1.025
2072	0.997
2073	0.97
2074	0.944
2075	0.918
2076	0.892
2077	0.866
2078	0.84
2079	0.813
2080	0.787
2081	0.761
2082	0.736
2083	0.712
2084	0.689
2085	0.667
2086	0.646
2087	0.624
2088	0.603
2089	0.582
2090	0.561
2091	0.541
2092	0.521
2093	0.501
2094	0.482
2095	0.463
2096	0.444
2097	0.425
2098	0.406
2099	0.387