Year	Number
1950	84.096
1951	85.311
1952	86.332
1953	86.971
1954	87.376
1955	87.727
1956	88.924
1957	89.851
1958	90.711
1959	91.618
1960	92.701
1961	87.638
1962	82.368
1963	77.387
1964	72.89
1965	68.929
1966	65.27
1967	62.382
1968	60.203
1969	58.549
1970	57.393
1971	51.569
1972	47.046
1973	44.074
1974	42.628
1975	42.488
1976	40.602
1977	39.742
1978	39.963
1979	40.795
1980	41.734
1981	42.978
1982	44.285
1983	45.75
1984	47.343
1985	48.932
1986	49.212
1987	49.048
1988	48.57
1989	47.79
1990	46.685
1991	45.025
1992	43.322
1993	41.586
1994	39.866
1995	38.268
1996	37.56
1997	36.842
1998	36.443
1999	36.317
2000	36.176
2001	32.884
2002	29.848
2003	27.237
2004	25.137
2005	23.566
2006	21.441
2007	19.628
2008	18.252
2009	17.204
2010	16.329
2011	16.674
2012	16.967
2013	17.237
2014	17.5
2015	17.751
2016	18.089
2017	18.358
2018	18.615
2019	18.877
2020	19.132
2021	19.446
2022	19.678
2023	19.889
2024	20.119
2025	20.388
2026	20.706
2027	21.099
2028	21.594
2029	22.199
2030	22.895
2031	23.633
2032	24.399
2033	25.231
2034	26.132
2035	27.078
2036	28.022
2037	28.941
2038	29.865
2039	30.773
2040	31.632
2041	32.352
2042	32.968
2043	33.561
2044	34.202
2045	34.914
2046	35.572
2047	36.241
2048	36.996
2049	37.897
2050	38.959
2051	40.084
2052	41.315
2053	42.673
2054	44.127
2055	45.626
2056	47.072
2057	48.508
2058	49.968
2059	51.444
2060	52.9
2061	54.221
2062	55.46
2063	56.674
2064	57.884
2065	59.074
2066	60.101
2067	61.06
2068	61.995
2069	62.93
2070	63.864
2071	64.596
2072	65.267
2073	65.927
2074	66.589
2075	67.224
2076	67.564
2077	67.828
2078	68.086
2079	68.367
2080	68.649
2081	68.708
2082	68.758
2083	68.83
2084	68.917
2085	69.006
2086	68.93
2087	68.869
2088	68.849
2089	68.865
2090	68.9
2091	68.785
2092	68.672
2093	68.611
2094	68.639
2095	68.754
2096	68.747
2097	68.811
2098	68.974
2099	69.229
2100	69.542