Year Number
1950 56.746
1951 59.705
1952 62.37
1953 64.992
1954 67.545
1955 69.882
1956 71.785
1957 73.679
1958 75.561
1959 77.353
1960 79.161
1961 78.905
1962 78.688
1963 78.822
1964 79.283
1965 79.912
1966 79.325
1967 78.97
1968 78.691
1969 78.298
1970 77.673
1971 78.074
1972 78.112
1973 77.824
1974 77.278
1975 76.452
1976 73.625
1977 70.94
1978 68.466
1979 66.191
1980 64.183
1981 62.676
1982 61.239
1983 60.228
1984 59.804
1985 59.837
1986 59.323
1987 59.617
1988 60.544
1989 61.698
1990 62.645
1991 63.269
1992 63.627
1993 63.764
1994 63.844
1995 63.974
1996 64.431
1997 64.686
1998 64.851
1999 65.074
2000 65.46
2001 65.74
2002 65.949
2003 65.974
2004 65.711
2005 65.165
2006 64.697
2007 64.544
2008 64.616
2009 64.823
2010 65.059
2011 64.922
2012 64.545
2013 64.056
2014 63.583
2015 63.193
2016 62.82
2017 62.518
2018 62.253
2019 61.971
2020 61.647
2021 61.283
2022 60.932
2023 60.597
2024 60.293
2025 60.034
2026 59.857
2027 59.692
2028 59.582
2029 59.57
2030 59.68
2031 59.857
2032 60.11
2033 60.437
2034 60.815
2035 61.222
2036 61.581
2037 61.951
2038 62.318
2039 62.665
2040 62.988
2041 63.204
2042 63.378
2043 63.511
2044 63.594
2045 63.619
2046 63.492
2047 63.319
2048 63.103
2049 62.849
2050 62.565
2051 62.178
2052 61.775
2053 61.386
2054 61.055
2055 60.809
2056 60.558
2057 60.387
2058 60.3
2059 60.29
2060 60.347
2061 60.38
2062 60.484
2063 60.654
2064 60.873
2065 61.136
2066 61.34
2067 61.585
2068 61.876
2069 62.217
2070 62.609
2071 62.931
2072 63.303
2073 63.713
2074 64.147
2075 64.594
2076 64.926
2077 65.272
2078 65.63
2079 66
2080 66.383
2081 66.612
2082 66.851
2083 67.116
2084 67.419
2085 67.758
2086 67.949
2087 68.186
2088 68.467
2089 68.791
2090 69.161
2091 69.392
2092 69.68
2093 70.025
2094 70.423
2095 70.872
2096 71.171
2097 71.525
2098 71.931
2099 72.39
2100 72.905