Year	Number
1950	80.307
1951	79.853
1952	80.173
1953	80.707
1954	81.153
1955	81.397
1956	81.711
1957	81.69
1958	81.653
1959	81.944
1960	82.683
1961	83.593
1962	84.796
1963	86.162
1964	87.393
1965	88.259
1966	88.536
1967	88.441
1968	88.092
1969	87.783
1970	87.821
1971	90.292
1972	93.289
1973	96.6
1974	99.803
1975	102.543
1976	103.085
1977	102.981
1978	102.573
1979	102.258
1980	102.204
1981	102.462
1982	102.796
1983	102.998
1984	102.74
1985	101.89
1986	100.739
1987	99.236
1988	97.398
1989	95.331
1990	93.168
1991	91.685
1992	89.974
1993	88.212
1994	86.581
1995	85.149
1996	84.241
1997	83.401
1998	82.605
1999	81.805
2000	80.973
2001	80.649
2002	80.371
2003	80.121
2004	79.85
2005	79.507
2006	79.336
2007	79.179
2008	79.037
2009	78.876
2010	78.629
2011	78.302
2012	77.712
2013	76.934
2014	76.044
2015	75.083
2016	74.079
2017	73.03
2018	71.932
2019	70.776
2020	69.574
2021	68.409
2022	67.264
2023	66.134
2024	65.032
2025	63.973
2026	63.117
2027	62.284
2028	61.495
2029	60.777
2030	60.139
2031	59.65
2032	59.217
2033	58.848
2034	58.551
2035	58.321
2036	58.213
2037	58.146
2038	58.098
2039	58.046
2040	57.976
2041	57.929
2042	57.852
2043	57.736
2044	57.569
2045	57.346
2046	57.102
2047	56.809
2048	56.468
2049	56.086
2050	55.668
2051	55.256
2052	54.812
2053	54.358
2054	53.925
2055	53.532
2056	53.218
2057	52.934
2058	52.685
2059	52.479
2060	52.321
2061	52.256
2062	52.228
2063	52.234
2064	52.267
2065	52.324
2066	52.447
2067	52.577
2068	52.724
2069	52.898
2070	53.102
2071	53.353
2072	53.622
2073	53.9
2074	54.172
2075	54.432
2076	54.685
2077	54.92
2078	55.133
2079	55.323
2080	55.492
2081	55.63
2082	55.74
2083	55.833
2084	55.924
2085	56.021
2086	56.114
2087	56.211
2088	56.317
2089	56.439
2090	56.581
2091	56.737
2092	56.911
2093	57.106
2094	57.328
2095	57.577
2096	57.833
2097	58.114
2098	58.42
2099	58.748
2100	59.096