Year	Percent
1950	1.753
1951	2.131
1952	2.744
1953	3.105
1954	3.279
1955	3.33
1956	3.315
1957	3.278
1958	3.252
1959	3.249
1960	3.253
1961	3.227
1962	3.128
1963	2.924
1964	2.634
1965	2.285
1966	1.934
1967	1.71
1968	1.712
1969	1.917
1970	2.236
1971	2.532
1972	2.625
1973	2.399
1974	1.884
1975	1.224
1976	0.589
1977	0.125
1978	-0.07
1979	0.008
1980	0.253
1981	0.515
1982	0.675
1983	0.659
1984	0.475
1985	0.188
1986	-0.082
1987	-0.163
1988	0.083
1989	0.641
1990	1.397
1991	2.151
1992	2.625
1993	2.636
1994	2.234
1995	1.593
1996	0.968
1997	0.695
1998	1.024
1999	1.912
2000	3.119
2001	4.256
2002	4.841
2003	4.612
2004	3.714
2005	2.451
2006	1.234
2007	0.657
2008	1.169
2009	2.677
2010	4.623
2011	6.268
2012	6.983
2013	6.539
2014	5.175
2015	3.476
2016	1.935
2017	0.718
2018	-0.135
2019	-0.609
2020	-0.904
2021	-1.216
2022	-1.487
2023	-1.599
2024	-1.552
2025	-1.388
2026	-1.163
2027	-0.933
2028	-0.736
2029	-0.59
2030	-0.46
2031	-0.312
2032	-0.164
2033	-0.042
2034	0.05
2035	0.124
2036	0.189
2037	0.232
2038	0.241
2039	0.219
2040	0.175
2041	0.123
2042	0.076
2043	0.045
2044	0.031
2045	0.025
2046	0.015
2047	0.003
2048	-0.007
2049	-0.016
2050	-0.024
2051	-0.032
2052	-0.04
2053	-0.05
2054	-0.062
2055	-0.075
2056	-0.088
2057	-0.104
2058	-0.123
2059	-0.146
2060	-0.171
2061	-0.197
2062	-0.225
2063	-0.254
2064	-0.284
2065	-0.315
2066	-0.347
2067	-0.378
2068	-0.41
2069	-0.442
2070	-0.472
2071	-0.503
2072	-0.531
2073	-0.556
2074	-0.578
2075	-0.597
2076	-0.615
2077	-0.63
2078	-0.643
2079	-0.653
2080	-0.66
2081	-0.665
2082	-0.667
2083	-0.667
2084	-0.664
2085	-0.659
2086	-0.652
2087	-0.643
2088	-0.634
2089	-0.624
2090	-0.613
2091	-0.6
2092	-0.588
2093	-0.574
2094	-0.56
2095	-0.546
2096	-0.532
2097	-0.519
2098	-0.506
2099	-0.495