Year	Number
1950	73.335
1951	74.994
1952	76.579
1953	77.799
1954	78.757
1955	79.542
1956	81.188
1957	82.731
1958	84.09
1959	85.062
1960	85.505
1961	85.798
1962	85.418
1963	84.749
1964	84.132
1965	83.638
1966	82.928
1967	82.796
1968	82.87
1969	82.565
1970	81.573
1971	80.725
1972	79.009
1973	76.751
1974	74.5
1975	72.492
1976	69.194
1977	66.229
1978	63.528
1979	61.053
1980	58.873
1981	56.939
1982	55.467
1983	54.228
1984	53.099
1985	52.08
1986	51.863
1987	51.963
1988	52.274
1989	52.725
1990	53.274
1991	53.571
1992	53.917
1993	54.246
1994	54.541
1995	54.793
1996	54.707
1997	54.658
1998	54.523
1999	54.35
2000	54.261
2001	52.766
2002	51.762
2003	51.01
2004	50.319
2005	49.735
2006	49.563
2007	49.267
2008	48.997
2009	48.996
2010	49.346
2011	48.978
2012	49.167
2013	49.74
2014	50.423
2015	51.097
2016	52.093
2017	52.934
2018	53.754
2019	54.773
2020	56.09
2021	57.221
2022	58.673
2023	60.326
2024	61.967
2025	63.478
2026	64.748
2027	65.891
2028	66.906
2029	67.863
2030	68.786
2031	69.387
2032	69.933
2033	70.42
2034	70.841
2035	71.185
2036	71.206
2037	71.191
2038	71.129
2039	71
2040	70.795
2041	70.272
2042	69.714
2043	69.163
2044	68.692
2045	68.333
2046	67.854
2047	67.509
2048	67.291
2049	67.191
2050	67.192
2051	67.063
2052	67.051
2053	67.164
2054	67.417
2055	67.81
2056	68.117
2057	68.596
2058	69.169
2059	69.74
2060	70.254
2061	70.494
2062	70.696
2063	70.881
2064	71.101
2065	71.366
2066	71.432
2067	71.568
2068	71.748
2069	71.928
2070	72.099
2071	71.997
2072	71.892
2073	71.851
2074	71.957
2075	72.242
2076	72.382
2077	72.712
2078	73.187
2079	73.743
2080	74.324
2081	74.644
2082	75.018
2083	75.454
2084	75.952
2085	76.497
2086	76.775
2087	77.134
2088	77.538
2089	77.963
2090	78.407
2091	78.593
2092	78.805
2093	79.066
2094	79.381
2095	79.744
2096	79.808
2097	79.937
2098	80.135
2099	80.374
2100	80.662