Year	Number
1950	70.385
1951	71.36
1952	73.907
1953	76.03
1954	77.45
1955	78.599
1956	82.058
1957	84.03
1958	85.64
1959	87.699
1960	90.335
1961	92.482
1962	95.277
1963	98.071
1964	99.876
1965	100.275
1966	98.614
1967	95.941
1968	92.796
1969	89.789
1970	87.21
1971	84.819
1972	82.764
1973	80.951
1974	79.212
1975	77.48
1976	76.64
1977	75.355
1978	73.91
1979	72.402
1980	70.794
1981	70.392
1982	69.833
1983	69.211
1984	68.618
1985	68.085
1986	65.604
1987	63.513
1988	61.826
1989	60.404
1990	59.136
1991	58.654
1992	57.965
1993	57.169
1994	56.311
1995	55.369
1996	54.429
1997	53.276
1998	51.99
1999	50.597
2000	49.118
2001	48.2
2002	47.138
2003	46.124
2004	45.182
2005	44.253
2006	43.646
2007	42.818
2008	41.929
2009	41.122
2010	40.43
2011	39.565
2012	39.007
2013	38.641
2014	38.318
2015	37.984
2016	38.075
2017	37.954
2018	37.791
2019	37.818
2020	38.121
2021	38.334
2022	38.871
2023	39.594
2024	40.273
2025	40.804
2026	41.281
2027	41.634
2028	41.921
2029	42.269
2030	42.747
2031	43.275
2032	43.896
2033	44.609
2034	45.39
2035	46.231
2036	47.035
2037	47.905
2038	48.848
2039	49.864
2040	50.958
2041	52.013
2042	53.123
2043	54.3
2044	55.559
2045	56.904
2046	58.177
2047	59.512
2048	60.897
2049	62.311
2050	63.732
2051	64.966
2052	66.206
2053	67.428
2054	68.593
2055	69.679
2056	70.478
2057	71.188
2058	71.855
2059	72.551
2060	73.312
2061	73.901
2062	74.571
2063	75.298
2064	76.032
2065	76.748
2066	77.227
2067	77.736
2068	78.243
2069	78.704
2070	79.09
2071	79.16
2072	79.176
2073	79.214
2074	79.383
2075	79.744
2076	80.05
2077	80.6
2078	81.324
2079	82.104
2080	82.861
2081	83.347
2082	83.875
2083	84.42
2084	84.986
2085	85.572
2086	85.884
2087	86.227
2088	86.621
2089	87.06
2090	87.528
2091	87.664
2092	87.885
2093	88.171
2094	88.484
2095	88.815
2096	88.829
2097	88.916
2098	89.074
2099	89.307
2100	89.625