Year	Number
1950	77.965
1951	79.152
1952	79.695
1953	80.677
1954	82.328
1955	84.385
1956	85.934
1957	87.994
1958	90.152
1959	91.927
1960	93.024
1961	94.446
1962	95.075
1963	95.17
1964	95.029
1965	94.704
1966	94.112
1967	93.503
1968	92.822
1969	91.97
1970	90.894
1971	91.394
1972	91.84
1973	92.064
1974	92.005
1975	91.521
1976	87.25
1977	83.037
1978	78.671
1979	74.185
1980	69.932
1981	68.147
1982	66.041
1983	64.073
1984	62.727
1985	62.088
1986	59.921
1987	58.659
1988	57.664
1989	56.426
1990	54.927
1991	54.668
1992	54.203
1993	53.464
1994	52.762
1995	52.4
1996	51.874
1997	51.93
1998	52.272
1999	52.639
2000	52.963
2001	53.17
2002	53.551
2003	53.919
2004	54.234
2005	54.548
2006	54.233
2007	54.15
2008	54.244
2009	54.512
2010	54.97
2011	55.295
2012	55.778
2013	56.343
2014	56.961
2015	57.63
2016	57.901
2017	58.332
2018	58.829
2019	59.331
2020	59.836
2021	60.138
2022	60.457
2023	60.851
2024	61.447
2025	62.324
2026	63.201
2027	64.365
2028	65.751
2029	67.263
2030	68.851
2031	70.303
2032	71.863
2033	73.487
2034	75.144
2035	76.817
2036	78.182
2037	79.546
2038	80.882
2039	82.19
2040	83.467
2041	84.346
2042	85.223
2043	86.01
2044	86.613
2045	86.98
2046	86.727
2047	86.318
2048	85.773
2049	85.204
2050	84.699
2051	83.84
2052	83.105
2053	82.484
2054	81.973
2055	81.556
2056	80.865
2057	80.374
2058	80.021
2059	79.759
2060	79.599
2061	79.217
2062	78.992
2063	78.929
2064	79.078
2065	79.475
2066	79.731
2067	80.245
2068	80.993
2069	81.944
2070	83.065
2071	83.952
2072	85.061
2073	86.271
2074	87.484
2075	88.679
2076	89.42
2077	90.13
2078	90.823
2079	91.533
2080	92.247
2081	92.449
2082	92.71
2083	92.981
2084	93.249
2085	93.542
2086	93.417
2087	93.408
2088	93.476
2089	93.623
2090	93.883
2091	93.775
2092	93.83
2093	94.035
2094	94.395
2095	94.912
2096	94.991
2097	95.289
2098	95.766
2099	96.361
2100	97.029