Year Number
1950 58.078
1951 57.438
1952 57.086
1953 56.713
1954 56.245
1955 55.714
1956 55.748
1957 55.463
1958 54.988
1959 54.477
1960 54.045
1961 54.516
1962 54.996
1963 55.589
1964 56.271
1965 56.96
1966 57.495
1967 58.021
1968 58.485
1969 58.865
1970 59.163
1971 58.996
1972 58.8
1973 58.507
1974 58.026
1975 57.335
1976 56.768
1977 55.931
1978 54.946
1979 53.97
1980 53.081
1981 52.13
1982 51.316
1983 50.645
1984 50.099
1985 49.685
1986 49.67
1987 49.721
1988 49.845
1989 50.037
1990 50.25
1991 50.685
1992 51.077
1993 51.388
1994 51.576
1995 51.617
1996 51.645
1997 51.574
1998 51.362
1999 50.972
2000 50.408
2001 50.258
2002 50.05
2003 49.754
2004 49.391
2005 49.009
2006 48.702
2007 48.364
2008 48.039
2009 47.782
2010 47.628
2011 47.969
2012 48.384
2013 48.847
2014 49.382
2015 50.066
2016 50.466
2017 50.911
2018 51.448
2019 52.098
2020 52.841
2021 53.669
2022 54.674
2023 55.764
2024 56.811
2025 57.751
2026 59.057
2027 60.192
2028 61.144
2029 61.922
2030 62.517
2031 63.01
2032 63.321
2033 63.502
2034 63.612
2035 63.691
2036 63.884
2037 64.094
2038 64.256
2039 64.296
2040 64.191
2041 64.129
2042 63.931
2043 63.663
2044 63.401
2045 63.177
2046 63.125
2047 63.098
2048 63.127
2049 63.243
2050 63.469
2051 63.939
2052 64.5
2053 65.165
2054 65.936
2055 66.792
2056 67.863
2057 69.05
2058 70.213
2059 71.16
2060 71.782
2061 72.212
2062 72.321
2063 72.177
2064 71.868
2065 71.442
2066 70.923
2067 70.323
2068 69.664
2069 68.98
2070 68.316
2071 67.731
2072 67.189
2073 66.732
2074 66.417
2075 66.274
2076 66.321
2077 66.543
2078 66.889
2079 67.272
2080 67.626
2081 67.972
2082 68.293
2083 68.622
2084 68.993
2085 69.41
2086 69.883
2087 70.431
2088 70.997
2089 71.514
2090 71.957
2091 72.33
2092 72.65
2093 72.915
2094 73.123
2095 73.269
2096 73.244
2097 73.17
2098 73.056
2099 72.93
2100 72.815