Year Number
1950 57.221
1951 58.307
1952 58.461
1953 58.765
1954 59.437
1955 60.251
1956 60.14
1957 60.646
1958 61.176
1959 61.201
1960 60.55
1961 59.974
1962 58.764
1963 57.164
1964 55.608
1965 54.309
1966 53.476
1967 52.749
1968 52.126
1969 51.552
1970 51.005
1971 50.433
1972 49.872
1973 49.337
1974 48.852
1975 48.427
1976 48.141
1977 48.055
1978 48.036
1979 47.927
1980 47.677
1981 47.666
1982 47.377
1983 47.001
1984 46.787
1985 46.832
1986 46.944
1987 47.276
1988 47.741
1989 48.203
1990 48.598
1991 48.922
1992 49.276
1993 49.591
1994 49.782
1995 49.805
1996 50.015
1997 49.933
1998 49.691
1999 49.485
2000 49.412
2001 49.299
2002 49.416
2003 49.657
2004 49.85
2005 49.927
2006 50.078
2007 50.067
2008 50.01
2009 50.156
2010 50.692
2011 51.665
2012 53.045
2013 54.758
2014 56.571
2015 58.267
2016 59.653
2017 60.902
2018 62.007
2019 63.004
2020 63.927
2021 64.78
2022 65.545
2023 66.236
2024 66.885
2025 67.517
2026 68.104
2027 68.654
2028 69.19
2029 69.726
2030 70.261
2031 70.671
2032 71.134
2033 71.552
2034 71.802
2035 71.84
2036 71.556
2037 71.049
2038 70.494
2039 70.09
2040 69.908
2041 69.796
2042 69.966
2043 70.295
2044 70.634
2045 70.938
2046 71.225
2047 71.52
2048 71.837
2049 72.177
2050 72.515
2051 72.701
2052 72.887
2053 73.095
2054 73.368
2055 73.732
2056 74.053
2057 74.496
2058 75.01
2059 75.49
2060 75.865
2061 76.009
2062 76.115
2063 76.165
2064 76.186
2065 76.23
2066 76.115
2067 75.996
2068 75.956
2069 76.051
2070 76.272
2071 76.339
2072 76.58
2073 76.93
2074 77.315
2075 77.713
2076 77.931
2077 78.202
2078 78.519
2079 78.879
2080 79.28
2081 79.459
2082 79.674
2083 79.95
2084 80.296
2085 80.691
2086 80.844
2087 81.092
2088 81.388
2089 81.699
2090 82.033
2091 82.143
2092 82.281
2093 82.469
2094 82.726
2095 83.049
2096 83.091
2097 83.204
2098 83.383
2099 83.621
2100 83.916