Year	Number
1950	72.783
1951	75.259
1952	78.047
1953	80.379
1954	82.109
1955	83.279
1956	86.084
1957	88.029
1958	89.514
1959	90.796
1960	92.106
1961	94.02
1962	95.997
1963	97.85
1964	99.263
1965	100.164
1966	102.105
1967	103.64
1968	104.967
1969	106.188
1970	107.517
1971	109.178
1972	110.754
1973	112.306
1974	113.733
1975	114.831
1976	115.563
1977	116.063
1978	116.044
1979	115.43
1980	114.37
1981	113.986
1982	112.753
1983	111.202
1984	109.798
1985	108.683
1986	108.176
1987	107.693
1988	107.044
1989	105.894
1990	104.175
1991	103.158
1992	101.144
1993	98.692
1994	96.376
1995	94.428
1996	92.469
1997	91.387
1998	90.699
1999	89.82
2000	88.564
2001	87.899
2002	86.742
2003	85.39
2004	84.35
2005	83.875
2006	84.041
2007	84.741
2008	85.644
2009	86.292
2010	86.465
2011	86.597
2012	86.149
2013	85.259
2014	84.242
2015	83.272
2016	81.689
2017	80.38
2018	79.145
2019	77.722
2020	76.038
2021	74.372
2022	72.54
2023	70.677
2024	68.974
2025	67.525
2026	66.307
2027	65.272
2028	64.408
2029	63.672
2030	63.033
2031	62.491
2032	62.04
2033	61.674
2034	61.392
2035	61.179
2036	61.003
2037	60.873
2038	60.782
2039	60.713
2040	60.659
2041	60.57
2042	60.491
2043	60.4
2044	60.279
2045	60.11
2046	59.844
2047	59.541
2048	59.211
2049	58.871
2050	58.534
2051	58.136
2052	57.759
2053	57.395
2054	57.034
2055	56.67
2056	56.246
2057	55.833
2058	55.467
2059	55.2
2060	55.058
2061	54.951
2062	54.97
2063	55.095
2064	55.296
2065	55.549
2066	55.762
2067	56.03
2068	56.365
2069	56.789
2070	57.31
2071	57.808
2072	58.404
2073	59.064
2074	59.733
2075	60.384
2076	60.895
2077	61.39
2078	61.882
2079	62.388
2080	62.918
2081	63.303
2082	63.716
2083	64.151
2084	64.617
2085	65.125
2086	65.489
2087	65.889
2088	66.349
2089	66.883
2090	67.476
2091	67.901
2092	68.406
2093	68.976
2094	69.597
2095	70.271
2096	70.777
2097	71.34
2098	71.972
2099	72.677
2100	73.453