Year	Number
1950	70.937
1951	72.333
1952	74.196
1953	76.017
1954	77.702
1955	79.403
1956	82.347
1957	84.612
1958	86.619
1959	88.644
1960	90.699
1961	92.06
1962	93.727
1963	95.259
1964	96.02
1965	95.726
1966	95.327
1967	94.045
1968	92.172
1969	90.22
1970	88.483
1971	86.893
1972	85.398
1973	83.985
1974	82.526
1975	80.928
1976	80.688
1977	80.543
1978	80.412
1979	80.245
1980	80.012
1981	78.264
1982	76.575
1983	75.005
1984	73.562
1985	72.206
1986	71.138
1987	69.989
1988	68.786
1989	67.661
1990	66.777
1991	65.456
1992	64.231
1993	63.133
1994	62.039
1995	60.808
1996	60.039
1997	59.046
1998	57.86
1999	56.654
2000	55.632
2001	56.029
2002	56.156
2003	56.07
2004	55.648
2005	54.732
2006	53.43
2007	51.78
2008	49.944
2009	48.326
2010	47.314
2011	46.945
2012	46.947
2013	47.236
2014	47.469
2015	47.338
2016	46.787
2017	46.176
2018	45.514
2019	44.971
2020	44.664
2021	44.427
2022	44.585
2023	45.043
2024	45.624
2025	46.252
2026	47.1
2027	47.819
2028	48.485
2029	49.217
2030	50.064
2031	50.731
2032	51.42
2033	52.088
2034	52.646
2035	53.047
2036	53.19
2037	53.225
2038	53.193
2039	53.175
2040	53.235
2041	53.28
2042	53.415
2043	53.677
2044	54.107
2045	54.734
2046	55.458
2047	56.396
2048	57.537
2049	58.856
2050	60.332
2051	61.809
2052	63.432
2053	65.214
2054	67.157
2055	69.248
2056	71.261
2057	73.413
2058	75.653
2059	77.906
2060	80.119
2061	82.015
2062	83.846
2063	85.578
2064	87.191
2065	88.675
2066	89.669
2067	90.527
2068	91.223
2069	91.714
2070	91.975
2071	91.603
2072	91.025
2073	90.366
2074	89.797
2075	89.424
2076	88.852
2077	88.536
2078	88.42
2079	88.408
2080	88.457
2081	88.217
2082	88.079
2083	88.09
2084	88.302
2085	88.731
2086	88.985
2087	89.475
2088	90.146
2089	90.926
2090	91.773
2091	92.331
2092	92.966
2093	93.652
2094	94.353
2095	95.034
2096	95.326
2097	95.601
2098	95.841
2099	96.053
2100	96.256