Year	Number
1950	71.604
1951	72.784
1952	74.106
1953	74.94
1954	75.101
1955	74.688
1956	76.087
1957	76.483
1958	76.314
1959	76.006
1960	75.734
1961	76.75
1962	77.687
1963	78.447
1964	78.808
1965	78.686
1966	79.99
1967	80.658
1968	80.855
1969	80.823
1970	80.706
1971	81.994
1972	82.941
1973	83.633
1974	84.112
1975	84.39
1976	86.13
1977	87.471
1978	88.486
1979	89.249
1980	89.801
1981	91.523
1982	92.886
1983	93.921
1984	94.624
1985	94.979
1986	97.078
1987	98.739
1988	100.031
1989	101.067
1990	101.918
1991	102.19
1992	102.172
1993	101.924
1994	101.46
1995	100.798
1996	100.896
1997	100.648
1998	100.185
1999	99.647
2000	99.103
2001	99.106
2002	98.963
2003	98.722
2004	98.423
2005	98.102
2006	98.66
2007	99.05
2008	99.291
2009	99.363
2010	99.243
2011	99.984
2012	100.358
2013	100.458
2014	100.387
2015	100.184
2016	99.826
2017	99.347
2018	98.695
2019	97.808
2020	96.685
2021	95.653
2022	94.439
2023	93.098
2024	91.712
2025	90.334
2026	89.229
2027	88.083
2028	86.933
2029	85.813
2030	84.739
2031	83.891
2032	83.045
2033	82.205
2034	81.365
2035	80.523
2036	79.818
2037	79.082
2038	78.314
2039	77.516
2040	76.691
2041	75.943
2042	75.153
2043	74.325
2044	73.462
2045	72.568
2046	71.736
2047	70.866
2048	69.968
2049	69.052
2050	68.129
2051	67.256
2052	66.378
2053	65.5
2054	64.632
2055	63.781
2056	63.008
2057	62.245
2058	61.497
2059	60.774
2060	60.081
2061	59.467
2062	58.872
2063	58.302
2064	57.763
2065	57.26
2066	56.828
2067	56.42
2068	56.04
2069	55.695
2070	55.389
2071	55.146
2072	54.928
2073	54.732
2074	54.553
2075	54.388
2076	54.249
2077	54.117
2078	53.991
2079	53.874
2080	53.768
2081	53.67
2082	53.574
2083	53.486
2084	53.416
2085	53.368
2086	53.327
2087	53.304
2088	53.302
2089	53.32
2090	53.36
2091	53.411
2092	53.474
2093	53.553
2094	53.66
2095	53.798
2096	53.933
2097	54.097
2098	54.292
2099	54.513
2100	54.754