Year	Number
1950	85.994
1951	86.876
1952	86.878
1953	86.597
1954	86.258
1955	85.822
1956	85.913
1957	86.097
1958	86.117
1959	85.724
1960	84.837
1961	85.193
1962	84.85
1963	84.12
1964	83.465
1965	83.125
1966	84.271
1967	85.713
1968	87.369
1969	88.984
1970	90.39
1971	93.072
1972	95.334
1973	97.375
1974	99.501
1975	101.851
1976	103.453
1977	105.183
1978	106.89
1979	108.322
1980	109.383
1981	110.996
1982	112.058
1983	112.793
1984	113.487
1985	114.253
1986	115.48
1987	116.589
1988	117.542
1989	118.277
1990	118.78
1991	118.294
1992	117.767
1993	117.025
1994	115.897
1995	114.303
1996	113.705
1997	112.281
1998	110.285
1999	108.046
2000	105.736
2001	103.129
2002	100.768
2003	98.465
2004	95.987
2005	93.303
2006	90.97
2007	88.438
2008	85.9
2009	83.595
2010	81.614
2011	80.194
2012	78.902
2013	77.734
2014	76.644
2015	75.595
2016	74.731
2017	73.93
2018	73.133
2019	72.267
2020	71.295
2021	70.349
2022	69.279
2023	68.119
2024	66.919
2025	65.707
2026	64.478
2027	63.24
2028	61.992
2029	60.723
2030	59.437
2031	58.261
2032	57.072
2033	55.889
2034	54.735
2035	53.624
2036	52.657
2037	51.712
2038	50.81
2039	49.975
2040	49.219
2041	48.619
2042	48.078
2043	47.586
2044	47.13
2045	46.704
2046	46.394
2047	46.096
2048	45.818
2049	45.571
2050	45.36
2051	45.238
2052	45.125
2053	45.029
2054	44.961
2055	44.926
2056	44.963
2057	45.016
2058	45.066
2059	45.086
2060	45.065
2061	45.05
2062	44.988
2063	44.897
2064	44.799
2065	44.71
2066	44.683
2067	44.645
2068	44.61
2069	44.597
2070	44.617
2071	44.742
2072	44.885
2073	45.046
2074	45.22
2075	45.407
2076	45.713
2077	46.01
2078	46.305
2079	46.611
2080	46.932
2081	47.367
2082	47.799
2083	48.227
2084	48.643
2085	49.045
2086	49.537
2087	49.999
2088	50.436
2089	50.856
2090	51.264
2091	51.762
2092	52.23
2093	52.676
2094	53.106
2095	53.525
2096	54.036
2097	54.52
2098	54.986
2099	55.435
2100	55.87