Year	Number
1950	71.235
1951	70.459
1952	68.217
1953	66.37
1954	65.824
1955	66.706
1956	68.425
1957	71.271
1958	74.756
1959	78.197
1960	81.175
1961	83.971
1962	86.261
1963	87.94
1964	88.943
1965	89.203
1966	88.925
1967	87.68
1968	85.707
1969	83.395
1970	80.993
1971	77.712
1972	74.906
1973	72.366
1974	69.79
1975	67.091
1976	64.993
1977	62.705
1978	60.476
1979	58.601
1980	57.166
1981	56.198
1982	55.636
1983	55.376
1984	55.248
1985	55.173
1986	55.17
1987	55.24
1988	55.447
1989	55.813
1990	56.231
1991	57.249
1992	58.345
1993	59.405
1994	60.288
1995	60.915
1996	60.444
1997	59.533
1998	58.316
1999	57.038
2000	55.897
2001	54.596
2002	53.601
2003	52.715
2004	51.676
2005	50.384
2006	49.335
2007	48.072
2008	46.805
2009	45.776
2010	45.059
2011	43.655
2012	42.526
2013	41.753
2014	41.333
2015	41.263
2016	42.095
2017	43.09
2018	44.2
2019	45.359
2020	46.502
2021	47.539
2022	48.566
2023	49.53
2024	50.402
2025	51.177
2026	51.982
2027	52.676
2028	53.222
2029	53.56
2030	53.651
2031	53.522
2032	53.205
2033	52.769
2034	52.323
2035	51.962
2036	51.696
2037	51.508
2038	51.433
2039	51.5
2040	51.713
2041	52.059
2042	52.537
2043	53.17
2044	53.985
2045	54.991
2046	56.199
2047	57.583
2048	59.133
2049	60.827
2050	62.64
2051	64.572
2052	66.621
2053	68.739
2054	70.846
2055	72.866
2056	74.778
2057	76.638
2058	78.308
2059	79.622
2060	80.494
2061	80.864
2062	80.784
2063	80.386
2064	79.862
2065	79.329
2066	78.598
2067	77.862
2068	77.204
2069	76.729
2070	76.508
2071	76.398
2072	76.567
2073	76.997
2074	77.64
2075	78.447
2076	79.336
2077	80.428
2078	81.654
2079	82.888
2080	84.024
2081	85
2082	85.912
2083	86.734
2084	87.435
2085	87.99
2086	88.345
2087	88.628
2088	88.789
2089	88.817
2090	88.747
2091	88.461
2092	88.088
2093	87.681
2094	87.309
2095	86.997
2096	86.411
2097	85.905
2098	85.505
2099	85.221
2100	85.05