Year	Number
1950	82.745
1951	82.42
1952	82.103
1953	81.795
1954	81.524
1955	81.321
1956	81.868
1957	82.227
1958	82.551
1959	83.018
1960	83.706
1961	84.952
1962	86.238
1963	87.431
1964	88.283
1965	88.643
1966	88.841
1967	88.454
1968	87.641
1969	86.628
1970	85.54
1971	84.237
1972	83.004
1973	81.722
1974	80.235
1975	78.512
1976	77.032
1977	75.281
1978	73.433
1979	71.711
1980	70.213
1981	68.893
1982	67.76
1983	66.765
1984	65.842
1985	64.982
1986	64.267
1987	63.649
1988	63.097
1989	62.521
1990	61.808
1991	62.521
1992	63.11
1993	63.538
1994	63.871
1995	64.204
1996	63.159
1997	62.245
1998	61.421
1999	60.571
2000	59.586
2001	58.668
2002	57.6
2003	56.364
2004	55.001
2005	53.547
2006	52.153
2007	50.863
2008	49.663
2009	48.637
2010	47.885
2011	46.72
2012	45.835
2013	45.247
2014	44.912
2015	44.807
2016	45.183
2017	45.577
2018	46.123
2019	46.983
2020	48.202
2021	49.468
2022	51.113
2023	52.987
2024	54.829
2025	56.487
2026	57.98
2027	59.27
2028	60.345
2029	61.249
2030	62.007
2031	62.491
2032	62.813
2033	62.987
2034	63.045
2035	63.018
2036	62.864
2037	62.671
2038	62.431
2039	62.135
2040	61.788
2041	61.353
2042	60.907
2043	60.497
2044	60.185
2045	60.008
2046	59.914
2047	59.968
2048	60.21
2049	60.684
2050	61.418
2051	62.347
2052	63.56
2053	65.042
2054	66.758
2055	68.675
2056	70.705
2057	72.972
2058	75.399
2059	77.879
2060	80.333
2061	82.586
2062	84.807
2063	86.906
2064	88.76
2065	90.274
2066	91.17
2067	91.754
2068	92.015
2069	91.986
2070	91.726
2071	90.926
2072	89.921
2073	88.888
2074	88.084
2075	87.667
2076	87.221
2077	87.193
2078	87.537
2079	88.129
2080	88.869
2081	89.373
2082	90.101
2083	91.02
2084	92.063
2085	93.168
2086	94.006
2087	94.981
2088	96.013
2089	96.999
2090	97.876
2091	98.401
2092	98.896
2093	99.313
2094	99.63
2095	99.86
2096	99.731
2097	99.524
2098	99.249
2099	98.989
2100	98.818