Year	Number
1950	90.755
1951	90.669
1952	89.738
1953	88.912
1954	88.453
1955	88.222
1956	87.936
1957	88.095
1958	88.275
1959	88.158
1960	87.688
1961	88.292
1962	88.337
1963	88.108
1964	87.979
1965	88.064
1966	89.015
1967	90.07
1968	91.118
1969	91.998
1970	92.663
1971	93.655
1972	94.304
1973	94.669
1974	94.771
1975	94.571
1976	94.826
1977	94.773
1978	94.446
1979	93.964
1980	93.489
1981	93.211
1982	92.719
1983	92.107
1984	91.399
1985	90.569
1986	90.161
1987	89.585
1988	88.869
1989	88.06
1990	87.204
1991	86.807
1992	86.304
1993	85.702
1994	84.978
1995	84.112
1996	83.547
1997	82.776
1998	81.866
1999	80.922
2000	80.016
2001	79.432
2002	78.931
2003	78.458
2004	77.923
2005	77.285
2006	76.897
2007	76.287
2008	75.553
2009	74.863
2010	74.311
2011	73.944
2012	73.754
2013	73.641
2014	73.435
2015	73.044
2016	72.965
2017	72.569
2018	71.975
2019	71.346
2020	70.749
2021	70.119
2022	69.567
2023	68.995
2024	68.274
2025	67.367
2026	66.567
2027	65.603
2028	64.549
2029	63.524
2030	62.591
2031	61.887
2032	61.23
2033	60.621
2034	60.043
2035	59.494
2036	59.122
2037	58.757
2038	58.405
2039	58.072
2040	57.76
2041	57.594
2042	57.415
2043	57.227
2044	57.031
2045	56.827
2046	56.732
2047	56.602
2048	56.439
2049	56.242
2050	56.012
2051	55.859
2052	55.653
2053	55.406
2054	55.133
2055	54.845
2056	54.65
2057	54.425
2058	54.169
2059	53.882
2060	53.567
2061	53.347
2062	53.088
2063	52.806
2064	52.521
2065	52.246
2066	52.1
2067	51.945
2068	51.788
2069	51.634
2070	51.488
2071	51.472
2072	51.436
2073	51.397
2074	51.374
2075	51.377
2076	51.514
2077	51.65
2078	51.775
2079	51.87
2080	51.927
2081	52.055
2082	52.131
2083	52.163
2084	52.16
2085	52.131
2086	52.178
2087	52.181
2088	52.15
2089	52.095
2090	52.025
2091	52.055
2092	52.054
2093	52.033
2094	52.001
2095	51.968
2096	52.044
2097	52.102
2098	52.149
2099	52.195
2100	52.244