Year	Number
1950	82.6
1951	83.507
1952	85.128
1953	86.34
1954	86.968
1955	87.315
1956	90.276
1957	92.297
1958	94.033
1959	96.002
1960	98.319
1961	100.151
1962	102.475
1963	104.88
1964	106.707
1965	107.655
1966	108.022
1967	107.638
1968	106.714
1969	105.607
1970	104.523
1971	103.562
1972	102.5
1973	101.437
1974	100.449
1975	99.587
1976	98.742
1977	97.996
1978	97.334
1979	96.697
1980	96.044
1981	96.222
1982	96.203
1983	96.023
1984	95.703
1985	95.226
1986	94.739
1987	93.981
1988	92.948
1989	91.62
1990	89.997
1991	88.164
1992	86.125
1993	83.922
1994	81.601
1995	79.212
1996	77.446
1997	75.586
1998	73.667
1999	71.723
2000	69.785
2001	68.459
2002	67.06
2003	65.658
2004	64.333
2005	63.129
2006	61.705
2007	60.469
2008	59.393
2009	58.438
2010	57.597
2011	56.943
2012	56.404
2013	55.967
2014	55.601
2015	55.27
2016	55.294
2017	55.179
2018	54.985
2019	54.792
2020	54.615
2021	54.263
2022	53.997
2023	53.718
2024	53.292
2025	52.67
2026	52.041
2027	51.239
2028	50.334
2029	49.437
2030	48.612
2031	47.903
2032	47.249
2033	46.657
2034	46.118
2035	45.628
2036	45.278
2037	44.974
2038	44.732
2039	44.571
2040	44.502
2041	44.584
2042	44.726
2043	44.932
2044	45.201
2045	45.53
2046	45.957
2047	46.423
2048	46.91
2049	47.4
2050	47.875
2051	48.363
2052	48.822
2053	49.248
2054	49.637
2055	49.987
2056	50.306
2057	50.571
2058	50.793
2059	50.983
2060	51.153
2061	51.309
2062	51.435
2063	51.537
2064	51.617
2065	51.68
2066	51.752
2067	51.802
2068	51.846
2069	51.901
2070	51.979
2071	52.119
2072	52.264
2073	52.439
2074	52.674
2075	52.986
2076	53.423
2077	53.923
2078	54.464
2079	55.008
2080	55.529
2081	56.08
2082	56.602
2083	57.097
2084	57.569
2085	58.019
2086	58.475
2087	58.899
2088	59.294
2089	59.662
2090	60.003
2091	60.333
2092	60.634
2093	60.911
2094	61.174
2095	61.429
2096	61.681
2097	61.922
2098	62.159
2099	62.4
2100	62.646