Year	Number
1950	62.187
1951	63.65
1952	65.587
1953	67.234
1954	68.443
1955	69.407
1956	71.931
1957	73.643
1958	75.05
1959	76.532
1960	78.159
1961	79.828
1962	81.729
1963	83.569
1964	84.901
1965	85.547
1966	86.399
1967	86.61
1968	86.358
1969	85.916
1970	85.422
1971	85.463
1972	85.248
1973	84.872
1974	84.408
1975	83.887
1976	83.626
1977	83.3
1978	82.888
1979	82.349
1980	81.676
1981	81.351
1982	80.86
1983	80.198
1984	79.332
1985	78.239
1986	77.475
1987	76.331
1988	74.939
1989	73.457
1990	71.954
1991	70.555
1992	69.252
1993	67.947
1994	66.528
1995	64.98
1996	63.551
1997	62.053
1998	60.554
1999	59.159
2000	57.918
2001	57.239
2002	56.661
2003	56.174
2004	55.728
2005	55.276
2006	55.081
2007	54.785
2008	54.397
2009	53.941
2010	53.431
2011	52.568
2012	51.695
2013	50.811
2014	49.923
2015	49.054
2016	48.23
2017	47.466
2018	46.748
2019	46.065
2020	45.422
2021	45.06
2022	44.673
2023	44.317
2024	44.048
2025	43.889
2026	43.877
2027	43.948
2028	44.084
2029	44.243
2030	44.403
2031	44.652
2032	44.883
2033	45.094
2034	45.288
2035	45.467
2036	45.71
2037	45.909
2038	46.072
2039	46.209
2040	46.328
2041	46.519
2042	46.672
2043	46.79
2044	46.878
2045	46.937
2046	47.09
2047	47.202
2048	47.279
2049	47.324
2050	47.342
2051	47.469
2052	47.558
2053	47.63
2054	47.705
2055	47.799
2056	48.063
2057	48.322
2058	48.586
2059	48.869
2060	49.175
2061	49.655
2062	50.129
2063	50.61
2064	51.109
2065	51.633
2066	52.342
2067	53.045
2068	53.72
2069	54.335
2070	54.867
2071	55.475
2072	55.984
2073	56.39
2074	56.692
2075	56.889
2076	57.136
2077	57.262
2078	57.298
2079	57.284
2080	57.246
2081	57.354
2082	57.422
2083	57.459
2084	57.476
2085	57.48
2086	57.669
2087	57.834
2088	57.982
2089	58.117
2090	58.241
2091	58.564
2092	58.86
2093	59.134
2094	59.391
2095	59.629
2096	60.038
2097	60.418
2098	60.769
2099	61.082
2100	61.348