Year	Percent
1950	2.703
1951	2.43
1952	1.976
1953	1.684
1954	1.518
1955	1.443
1956	1.43
1957	1.452
1958	1.489
1959	1.531
1960	1.579
1961	1.649
1962	1.76
1963	1.928
1964	2.141
1965	2.369
1966	2.576
1967	2.71
1968	2.737
1969	2.663
1970	2.542
1971	2.42
1972	2.292
1973	2.144
1974	1.982
1975	1.815
1976	1.654
1977	1.525
1978	1.447
1979	1.42
1980	1.415
1981	1.408
1982	1.424
1983	1.492
1984	1.601
1985	1.733
1986	1.855
1987	1.913
1988	1.864
1989	1.717
1990	1.52
1991	1.328
1992	1.161
1993	1.027
1994	0.928
1995	0.847
1996	0.765
1997	0.694
1998	0.645
1999	0.618
2000	0.605
2001	0.598
2002	0.593
2003	0.588
2004	0.581
2005	0.575
2006	0.571
2007	0.569
2008	0.568
2009	0.567
2010	0.567
2011	0.565
2012	0.557
2013	0.539
2014	0.512
2015	0.479
2016	0.445
2017	0.41
2018	0.373
2019	0.335
2020	0.296
2021	0.256
2022	0.216
2023	0.179
2024	0.145
2025	0.112
2026	0.079
2027	0.047
2028	0.016
2029	-0.013
2030	-0.041
2031	-0.068
2032	-0.095
2033	-0.12
2034	-0.145
2035	-0.169
2036	-0.192
2037	-0.215
2038	-0.236
2039	-0.257
2040	-0.278
2041	-0.298
2042	-0.318
2043	-0.339
2044	-0.36
2045	-0.381
2046	-0.402
2047	-0.423
2048	-0.444
2049	-0.465
2050	-0.486
2051	-0.507
2052	-0.526
2053	-0.544
2054	-0.561
2055	-0.577
2056	-0.592
2057	-0.605
2058	-0.615
2059	-0.624
2060	-0.631
2061	-0.636
2062	-0.64
2063	-0.642
2064	-0.643
2065	-0.643
2066	-0.641
2067	-0.639
2068	-0.637
2069	-0.636
2070	-0.634
2071	-0.631
2072	-0.629
2073	-0.627
2074	-0.626
2075	-0.625
2076	-0.624
2077	-0.622
2078	-0.619
2079	-0.615
2080	-0.61
2081	-0.605
2082	-0.599
2083	-0.592
2084	-0.584
2085	-0.575
2086	-0.566
2087	-0.556
2088	-0.546
2089	-0.536
2090	-0.526
2091	-0.516
2092	-0.507
2093	-0.5
2094	-0.494
2095	-0.489
2096	-0.486
2097	-0.485
2098	-0.485
2099	-0.488