Year	Number
1950	70.335
1951	71.01
1952	71.482
1953	71.683
1954	71.648
1955	71.449
1956	72.443
1957	73.06
1958	73.449
1959	73.752
1960	74.035
1961	75.232
1962	76.205
1963	76.981
1964	77.545
1965	77.894
1966	79.066
1967	79.895
1968	80.44
1969	80.752
1970	80.865
1971	82.131
1972	83.076
1973	83.758
1974	84.245
1975	84.587
1976	85.371
1977	85.884
1978	86.197
1979	86.383
1980	86.494
1981	86.766
1982	86.873
1983	86.856
1984	86.719
1985	86.454
1986	87.492
1987	88.283
1988	88.841
1989	89.19
1990	89.347
1991	89.397
1992	89.106
1993	88.565
1994	87.87
1995	87.081
1996	87.036
1997	86.907
1998	86.637
1999	86.138
2000	85.379
2001	85.702
2002	85.612
2003	85.227
2004	84.699
2005	84.099
2006	83.551
2007	82.837
2008	81.989
2009	81.017
2010	79.949
2011	79.077
2012	78.177
2013	77.239
2014	76.233
2015	75.156
2016	74.507
2017	73.654
2018	72.703
2019	71.779
2020	70.927
2021	70.354
2022	69.781
2023	69.18
2024	68.488
2025	67.678
2026	67.026
2027	66.244
2028	65.363
2029	64.424
2030	63.458
2031	62.657
2032	61.806
2033	60.927
2034	60.035
2035	59.149
2036	58.451
2037	57.736
2038	57.027
2039	56.346
2040	55.71
2041	55.235
2042	54.781
2043	54.355
2044	53.962
2045	53.607
2046	53.389
2047	53.181
2048	52.987
2049	52.816
2050	52.67
2051	52.612
2052	52.562
2053	52.513
2054	52.453
2055	52.379
2056	52.347
2057	52.288
2058	52.214
2059	52.147
2060	52.098
2061	52.099
2062	52.103
2063	52.11
2064	52.119
2065	52.13
2066	52.177
2067	52.217
2068	52.25
2069	52.276
2070	52.297
2071	52.337
2072	52.361
2073	52.384
2074	52.425
2075	52.498
2076	52.622
2077	52.763
2078	52.923
2079	53.099
2080	53.29
2081	53.516
2082	53.747
2083	53.983
2084	54.229
2085	54.486
2086	54.757
2087	55.031
2088	55.307
2089	55.583
2090	55.857
2091	56.131
2092	56.394
2093	56.653
2094	56.913
2095	57.18
2096	57.438
2097	57.699
2098	57.966
2099	58.237
2100	58.513