Year	Number
1950	80.14
1951	81.947
1952	84.916
1953	87.213
1954	88.44
1955	89.007
1956	91.646
1957	92.697
1958	93.279
1959	94.248
1960	95.802
1961	96.729
1962	98.596
1963	100.686
1964	102.037
1965	102.261
1966	102.326
1967	101.488
1968	100.116
1969	98.61
1970	97.153
1971	98.723
1972	100.418
1973	102.263
1974	104.354
1975	106.887
1976	105.877
1977	105.062
1978	104.499
1979	104.049
1980	103.602
1981	102.273
1982	101.188
1983	100.04
1984	98.531
1985	96.593
1986	95.923
1987	94.697
1988	93.222
1989	91.983
1990	91.152
1991	90.947
1992	90.997
1993	90.875
1994	90.199
1995	88.92
1996	87.329
1997	85.629
1998	83.591
1999	81.217
2000	78.693
2001	78.349
2002	77.68
2003	76.824
2004	75.869
2005	74.835
2006	73.587
2007	72.341
2008	71.108
2009	69.907
2010	68.763
2011	67.193
2012	65.74
2013	64.426
2014	63.296
2015	62.404
2016	61.64
2017	61.083
2018	60.715
2019	60.469
2020	60.323
2021	60.293
2022	60.314
2023	60.379
2024	60.483
2025	60.599
2026	60.631
2027	60.639
2028	60.585
2029	60.425
2030	60.125
2031	59.73
2032	59.216
2033	58.54
2034	57.692
2035	56.656
2036	55.514
2037	54.253
2038	52.906
2039	51.517
2040	50.144
2041	48.887
2042	47.665
2043	46.532
2044	45.564
2045	44.812
2046	44.419
2047	44.228
2048	44.203
2049	44.277
2050	44.422
2051	44.764
2052	45.168
2053	45.65
2054	46.227
2055	46.912
2056	47.734
2057	48.63
2058	49.577
2059	50.558
2060	51.55
2061	52.521
2062	53.479
2063	54.391
2064	55.226
2065	55.958
2066	56.526
2067	56.983
2068	57.32
2069	57.541
2070	57.651
2071	57.627
2072	57.501
2073	57.298
2074	57.054
2075	56.784
2076	56.545
2077	56.298
2078	56.062
2079	55.874
2080	55.768
2081	55.829
2082	55.966
2083	56.187
2084	56.484
2085	56.87
2086	57.424
2087	58.055
2088	58.754
2089	59.496
2090	60.268
2091	61.13
2092	62.025
2093	62.914
2094	63.781
2095	64.595
2096	65.375
2097	66.107
2098	66.777
2099	67.361
2100	67.851