Year	Number
1950	68.061
1951	68.271
1952	67.75
1953	67.61
1954	68.191
1955	69.374
1956	69.877
1957	71.151
1958	72.653
1959	73.799
1960	74.249
1961	74.498
1962	73.916
1963	72.547
1964	70.779
1965	68.983
1966	69.031
1967	69.13
1968	69.266
1969	69.411
1970	69.591
1971	67.089
1972	64.705
1973	62.721
1974	61.155
1975	59.834
1976	58.282
1977	56.711
1978	55.187
1979	53.719
1980	52.303
1981	52.589
1982	52.764
1983	52.923
1984	53.115
1985	53.317
1986	53.653
1987	53.8
1988	54.007
1989	54.368
1990	54.791
1991	54.51
1992	54.173
1993	53.802
1994	53.322
1995	52.693
1996	52.274
1997	51.468
1998	50.468
1999	49.436
2000	48.431
2001	47.453
2002	46.539
2003	45.741
2004	45.002
2005	44.252
2006	43.709
2007	43.115
2008	42.521
2009	41.976
2010	41.516
2011	41.432
2012	41.363
2013	41.363
2014	41.456
2015	41.636
2016	41.986
2017	42.379
2018	42.828
2019	43.317
2020	43.825
2021	44.404
2022	45
2023	45.6
2024	46.177
2025	46.711
2026	47.273
2027	47.762
2028	48.211
2029	48.644
2030	49.07
2031	49.511
2032	49.917
2033	50.322
2034	50.747
2035	51.199
2036	51.676
2037	52.175
2038	52.724
2039	53.333
2040	54.006
2041	54.739
2042	55.509
2043	56.364
2044	57.348
2045	58.479
2046	59.736
2047	61.123
2048	62.6
2049	64.059
2050	65.416
2051	66.624
2052	67.702
2053	68.719
2054	69.768
2055	70.901
2056	72.031
2057	73.221
2058	74.439
2059	75.601
2060	76.641
2061	77.459
2062	78.155
2063	78.75
2064	79.255
2065	79.672
2066	79.849
2067	79.929
2068	79.964
2069	80.005
2070	80.079
2071	80.02
2072	79.997
2073	80.047
2074	80.16
2075	80.306
2076	80.334
2077	80.449
2078	80.614
2079	80.79
2080	80.982
2081	81.052
2082	81.122
2083	81.254
2084	81.459
2085	81.708
2086	81.791
2087	81.943
2088	82.14
2089	82.353
2090	82.585
2091	82.671
2092	82.784
2093	82.943
2094	83.148
2095	83.389
2096	83.442
2097	83.517
2098	83.625
2099	83.78
2100	83.996