Year	Number
1950	81.888
1951	82.706
1952	83.444
1953	84.05
1954	84.507
1955	84.844
1956	86.121
1957	87.052
1958	87.777
1959	88.412
1960	88.998
1961	90.072
1962	91.033
1963	91.811
1964	92.279
1965	92.387
1966	92.964
1967	93.046
1968	92.779
1969	92.332
1970	91.781
1971	91.58
1972	91.171
1973	90.59
1974	89.861
1975	89.015
1976	88.489
1977	87.883
1978	87.148
1979	86.197
1980	84.999
1981	84.187
1982	82.963
1983	81.525
1984	80.122
1985	78.868
1986	77.739
1987	76.826
1988	75.994
1989	75.045
1990	73.903
1991	73.092
1992	72.033
1993	70.839
1994	69.671
1995	68.595
1996	67.769
1997	66.993
1998	66.235
1999	65.441
2000	64.579
2001	63.612
2002	62.651
2003	61.666
2004	60.651
2005	59.634
2006	58.692
2007	57.722
2008	56.77
2009	55.909
2010	55.183
2011	54.611
2012	54.166
2013	53.815
2014	53.5
2015	53.188
2016	52.99
2017	52.754
2018	52.506
2019	52.284
2020	52.1
2021	51.875
2022	51.703
2023	51.559
2024	51.411
2025	51.25
2026	51.117
2027	50.967
2028	50.818
2029	50.703
2030	50.636
2031	50.603
2032	50.616
2033	50.67
2034	50.75
2035	50.852
2036	50.959
2037	51.084
2038	51.244
2039	51.458
2040	51.739
2041	52.041
2042	52.402
2043	52.811
2044	53.248
2045	53.7
2046	54.105
2047	54.524
2048	54.97
2049	55.463
2050	56.016
2051	56.546
2052	57.127
2053	57.751
2054	58.404
2055	59.074
2056	59.655
2057	60.259
2058	60.877
2059	61.492
2060	62.094
2061	62.565
2062	63.03
2063	63.498
2064	63.988
2065	64.515
2066	64.927
2067	65.38
2068	65.881
2069	66.428
2070	67.014
2071	67.466
2072	67.972
2073	68.531
2074	69.149
2075	69.836
2076	70.397
2077	71.031
2078	71.733
2079	72.48
2080	73.25
2081	73.827
2082	74.442
2083	75.089
2084	75.76
2085	76.456
2086	76.948
2087	77.479
2088	78.045
2089	78.639
2090	79.263
2091	79.655
2092	80.085
2093	80.558
2094	81.079
2095	81.645
2096	81.957
2097	82.332
2098	82.77
2099	83.258
2100	83.788