Year	Percent
1950	1.121
1951	1.166
1952	1.254
1953	1.34
1954	1.423
1955	1.502
1956	1.578
1957	1.651
1958	1.719
1959	1.784
1960	1.846
1961	1.906
1962	1.964
1963	2.021
1964	2.077
1965	2.117
1966	2.138
1967	2.178
1968	2.27
1969	2.402
1970	2.53
1971	2.608
1972	2.602
1973	2.494
1974	2.285
1975	2.062
1976	1.86
1977	1.524
1978	0.907
1979	0.04
1980	-0.959
1981	-1.919
1982	-2.613
1983	-2.834
1984	-2.508
1985	-1.887
1986	-1.204
1987	-0.26
1988	1.181
1989	2.978
1990	4.913
1991	6.613
1992	7.495
1993	7.281
1994	6.234
1995	4.858
1996	3.615
1997	2.839
1998	2.706
1999	3.158
2000	3.873
2001	4.486
2002	4.769
2003	4.643
2004	4.17
2005	3.55
2006	2.992
2007	2.634
2008	2.541
2009	2.691
2010	2.954
2011	3.184
2012	3.294
2013	3.249
2014	3.063
2015	2.816
2016	2.59
2017	2.418
2018	2.309
2019	2.26
2020	2.24
2021	2.216
2022	2.182
2023	2.142
2024	2.095
2025	2.046
2026	2.001
2027	1.958
2028	1.916
2029	1.873
2030	1.831
2031	1.789
2032	1.747
2033	1.705
2034	1.662
2035	1.62
2036	1.579
2037	1.537
2038	1.494
2039	1.452
2040	1.409
2041	1.367
2042	1.325
2043	1.283
2044	1.241
2045	1.2
2046	1.158
2047	1.118
2048	1.08
2049	1.042
2050	1.006
2051	0.969
2052	0.934
2053	0.899
2054	0.865
2055	0.831
2056	0.798
2057	0.765
2058	0.732
2059	0.699
2060	0.667
2061	0.634
2062	0.603
2063	0.571
2064	0.54
2065	0.509
2066	0.478
2067	0.448
2068	0.418
2069	0.387
2070	0.357
2071	0.327
2072	0.297
2073	0.267
2074	0.237
2075	0.207
2076	0.177
2077	0.149
2078	0.121
2079	0.095
2080	0.069
2081	0.044
2082	0.02
2083	-0.003
2084	-0.027
2085	-0.049
2086	-0.071
2087	-0.091
2088	-0.111
2089	-0.13
2090	-0.148
2091	-0.165
2092	-0.182
2093	-0.197
2094	-0.212
2095	-0.226
2096	-0.239
2097	-0.251
2098	-0.262
2099	-0.272