Year	Number
1950	61.421
1951	62.909
1952	63.919
1953	64.951
1954	66.11
1955	67.267
1956	68.179
1957	69.273
1958	70.249
1959	70.852
1960	71.017
1961	71.297
1962	70.959
1963	70.244
1964	69.475
1965	68.786
1966	68.562
1967	68.371
1968	68.138
1969	67.788
1970	67.33
1971	66.614
1972	65.941
1973	65.207
1974	64.283
1975	63.098
1976	62.675
1977	61.849
1978	60.732
1979	59.581
1980	58.577
1981	57.236
1982	56.211
1983	55.374
1984	54.557
1985	53.72
1986	53.31
1987	52.904
1988	52.533
1989	52.302
1990	52.271
1991	52.322
1992	52.444
1993	52.603
1994	52.736
1995	52.796
1996	52.984
1997	53.08
1998	53.042
1999	52.895
2000	52.695
2001	52.207
2002	51.782
2003	51.382
2004	50.974
2005	50.557
2006	50.374
2007	50.241
2008	50.183
2009	50.233
2010	50.404
2011	51.046
2012	51.727
2013	52.455
2014	53.223
2015	54.008
2016	54.579
2017	55.186
2018	55.826
2019	56.478
2020	57.128
2021	57.699
2022	58.304
2023	58.941
2024	59.634
2025	60.409
2026	61.253
2027	62.152
2028	63.082
2029	63.994
2030	64.845
2031	65.465
2032	66.011
2033	66.523
2034	67.063
2035	67.668
2036	68.16
2037	68.727
2038	69.305
2039	69.777
2040	70.066
2041	70.015
2042	69.831
2043	69.567
2044	69.323
2045	69.169
2046	68.948
2047	68.828
2048	68.796
2049	68.811
2050	68.843
2051	68.697
2052	68.595
2053	68.576
2054	68.681
2055	68.919
2056	69.107
2057	69.477
2058	69.95
2059	70.435
2060	70.895
2061	71.174
2062	71.444
2063	71.741
2064	72.08
2065	72.442
2066	72.6
2067	72.818
2068	73.074
2069	73.383
2070	73.792
2071	74.089
2072	74.476
2073	74.974
2074	75.574
2075	76.23
2076	76.63
2077	77.117
2078	77.65
2079	78.195
2080	78.756
2081	79.037
2082	79.334
2083	79.685
2084	80.111
2085	80.599
2086	80.809
2087	81.121
2088	81.499
2089	81.915
2090	82.381
2091	82.59
2092	82.859
2093	83.2
2094	83.621
2095	84.117
2096	84.312
2097	84.579
2098	84.91
2099	85.309
2100	85.777