Year	Number
1950	82.53
1951	82.913
1952	83.096
1953	83.146
1954	83.178
1955	83.259
1956	84.307
1957	85.181
1958	85.927
1959	86.565
1960	87.109
1961	88.532
1962	89.61
1963	90.434
1964	91.09
1965	91.605
1966	92.615
1967	93.391
1968	93.926
1969	94.185
1970	94.17
1971	94.7
1972	94.881
1973	94.789
1974	94.516
1975	94.115
1976	94.281
1977	94.207
1978	93.953
1979	93.566
1980	93.076
1981	93.126
1982	92.987
1983	92.709
1984	92.334
1985	91.887
1986	91.958
1987	91.924
1988	91.786
1989	91.537
1990	91.183
1991	90.943
1992	90.533
1993	90.008
1994	89.431
1995	88.835
1996	88.246
1997	87.593
1998	86.891
1999	86.144
2000	85.358
2001	84.676
2002	83.913
2003	83.093
2004	82.232
2005	81.336
2006	81.047
2007	80.661
2008	80.187
2009	79.64
2010	79.031
2011	78.61
2012	78.091
2013	77.495
2014	76.841
2015	76.138
2016	75.554
2017	74.904
2018	74.202
2019	73.464
2020	72.702
2021	72.088
2022	71.438
2023	70.761
2024	70.066
2025	69.363
2026	68.821
2027	68.247
2028	67.656
2029	67.066
2030	66.487
2031	66.055
2032	65.608
2033	65.153
2034	64.692
2035	64.231
2036	63.899
2037	63.539
2038	63.156
2039	62.76
2040	62.355
2041	62.057
2042	61.727
2043	61.37
2044	60.988
2045	60.586
2046	60.276
2047	59.928
2048	59.552
2049	59.159
2050	58.756
2051	58.455
2052	58.126
2053	57.779
2054	57.423
2055	57.067
2056	56.82
2057	56.554
2058	56.277
2059	55.998
2060	55.722
2061	55.557
2062	55.375
2063	55.184
2064	54.99
2065	54.799
2066	54.715
2067	54.611
2068	54.494
2069	54.372
2070	54.25
2071	54.221
2072	54.173
2073	54.109
2074	54.031
2075	53.942
2076	53.938
2077	53.903
2078	53.845
2079	53.77
2080	53.684
2081	53.677
2082	53.64
2083	53.58
2084	53.504
2085	53.419
2086	53.416
2087	53.386
2088	53.335
2089	53.272
2090	53.202
2091	53.221
2092	53.215
2093	53.192
2094	53.158
2095	53.119
2096	53.18
2097	53.216
2098	53.235
2099	53.241
2100	53.24