Year	Number
1950	63.428
1951	65.602
1952	68.154
1953	70.199
1954	71.406
1955	71.956
1956	74.206
1957	75.285
1958	75.87
1959	76.502
1960	77.322
1961	77.567
1962	78.693
1963	80.066
1964	80.823
1965	80.681
1966	81.565
1967	81.39
1968	80.642
1969	79.98
1970	79.648
1971	79.998
1972	80.188
1973	80.209
1974	79.864
1975	79.004
1976	77.537
1977	75.729
1978	73.584
1979	71.17
1980	68.603
1981	65.733
1982	63.063
1983	60.557
1984	58.247
1985	56.225
1986	54.937
1987	53.903
1988	53.12
1989	52.499
1990	51.939
1991	52.156
1992	51.891
1993	51.405
1994	50.994
1995	50.732
1996	49.727
1997	49.145
1998	48.644
1999	47.79
2000	46.447
2001	44.999
2002	43.272
2003	41.397
2004	39.621
2005	38.086
2006	37.05
2007	36.08
2008	35.286
2009	34.756
2010	34.519
2011	34.493
2012	34.737
2013	35.215
2014	35.847
2015	36.58
2016	37.506
2017	38.504
2018	39.509
2019	40.446
2020	41.259
2021	41.904
2022	42.423
2023	42.858
2024	43.284
2025	43.757
2026	44.25
2027	44.793
2028	45.41
2029	46.15
2030	47.05
2031	48.147
2032	49.388
2033	50.752
2034	52.198
2035	53.694
2036	55.221
2037	56.785
2038	58.333
2039	59.777
2040	61.052
2041	62.092
2042	62.94
2043	63.668
2044	64.371
2045	65.107
2046	65.788
2047	66.472
2048	67.249
2049	68.276
2050	69.667
2051	71.37
2052	73.457
2053	75.78
2054	78.061
2055	80.086
2056	81.741
2057	83.118
2058	84.215
2059	85.044
2060	85.605
2061	85.751
2062	85.644
2063	85.36
2064	85.008
2065	84.676
2066	84.297
2067	84.007
2068	83.799
2069	83.671
2070	83.648
2071	83.579
2072	83.626
2073	83.81
2074	84.158
2075	84.669
2076	85.051
2077	85.569
2078	86.24
2079	87
2080	87.742
2081	88.231
2082	88.819
2083	89.378
2084	89.802
2085	90.101
2086	90.197
2087	90.202
2088	90.152
2089	90.108
2090	90.1
2091	89.848
2092	89.61
2093	89.422
2094	89.331
2095	89.35
2096	89.063
2097	88.94
2098	88.987
2099	89.142
2100	89.335