Year	Percent
1950	4.303
1951	3.904
1952	3.308
1953	3.051
1954	2.991
1955	3.054
1956	3.17
1957	3.26
1958	3.298
1959	3.259
1960	3.177
1961	3.102
1962	3.081
1963	3.167
1964	3.33
1965	3.547
1966	3.757
1967	3.735
1968	3.307
1969	2.527
1970	1.585
1971	0.701
1972	0.146
1973	0.143
1974	0.681
1975	1.506
1976	2.291
1977	2.894
1978	3.254
1979	3.36
1980	3.365
1981	3.375
1982	3.342
1983	3.213
1984	3.011
1985	2.751
1986	2.467
1987	2.264
1988	2.212
1989	2.289
1990	2.441
1991	2.571
1992	2.533
1993	2.239
1994	1.713
1995	1.067
1996	0.438
1997	-0.049
1998	-0.317
1999	-0.374
2000	-0.303
2001	-0.209
2002	-0.163
2003	-0.19
2004	-0.291
2005	-0.421
2006	-0.529
2007	-0.574
2008	-0.535
2009	-0.414
2010	-0.237
2011	-0.055
2012	0.113
2013	0.247
2014	0.351
2015	0.441
2016	0.529
2017	0.611
2018	0.677
2019	0.723
2020	0.754
2021	0.781
2022	0.803
2023	0.829
2024	0.861
2025	0.89
2026	0.912
2027	0.92
2028	0.906
2029	0.87
2030	0.819
2031	0.766
2032	0.718
2033	0.669
2034	0.622
2035	0.578
2036	0.53
2037	0.489
2038	0.453
2039	0.419
2040	0.388
2041	0.359
2042	0.335
2043	0.313
2044	0.296
2045	0.283
2046	0.271
2047	0.261
2048	0.252
2049	0.248
2050	0.247
2051	0.244
2052	0.24
2053	0.232
2054	0.216
2055	0.198
2056	0.178
2057	0.154
2058	0.13
2059	0.1
2060	0.065
2061	0.028
2062	-0.015
2063	-0.053
2064	-0.094
2065	-0.138
2066	-0.183
2067	-0.222
2068	-0.259
2069	-0.3
2070	-0.335
2071	-0.369
2072	-0.4
2073	-0.427
2074	-0.444
2075	-0.463
2076	-0.48
2077	-0.49
2078	-0.5
2079	-0.509
2080	-0.51
2081	-0.509
2082	-0.514
2083	-0.512
2084	-0.513
2085	-0.515
2086	-0.513
2087	-0.513
2088	-0.511
2089	-0.515
2090	-0.519
2091	-0.526
2092	-0.533
2093	-0.539
2094	-0.544
2095	-0.552
2096	-0.565
2097	-0.572
2098	-0.584
2099	-0.6