Year Number
1950 53.002
1951 52.902
1952 52.284
1953 51.79
1954 51.571
1955 51.541
1956 51.558
1957 51.913
1958 52.354
1959 52.604
1960 52.534
1961 52.525
1962 52.299
1963 51.869
1964 51.327
1965 50.735
1966 50.39
1967 49.861
1968 49.254
1969 48.722
1970 48.36
1971 48.221
1972 48.322
1973 48.561
1974 48.765
1975 48.846
1976 49.06
1977 49.078
1978 48.954
1979 48.754
1980 48.5
1981 47.977
1982 47.419
1983 46.869
1984 46.358
1985 45.914
1986 45.867
1987 45.824
1988 45.783
1989 45.747
1990 45.698
1991 46.02
1992 46.343
1993 46.655
1994 46.975
1995 47.336
1996 47.558
1997 47.925
1998 48.364
1999 48.751
2000 49.004
2001 49.46
2002 49.586
2003 49.491
2004 49.337
2005 49.205
2006 48.916
2007 48.867
2008 48.986
2009 49.144
2010 49.303
2011 49.738
2012 49.996
2013 50.197
2014 50.544
2015 51.121
2016 51.763
2017 52.645
2018 53.667
2019 54.638
2020 55.455
2021 56.294
2022 56.992
2023 57.578
2024 58.135
2025 58.707
2026 59.379
2027 60.053
2028 60.71
2029 61.297
2030 61.779
2031 62.235
2032 62.609
2033 62.935
2034 63.291
2035 63.741
2036 64.304
2037 64.942
2038 65.658
2039 66.429
2040 67.222
2041 68.01
2042 68.832
2043 69.68
2044 70.549
2045 71.436
2046 72.361
2047 73.306
2048 74.257
2049 75.187
2050 76.075
2051 76.879
2052 77.667
2053 78.406
2054 79.042
2055 79.535
2056 79.818
2057 79.975
2058 80.067
2059 80.212
2060 80.493
2061 80.806
2062 81.28
2063 81.845
2064 82.352
2065 82.693
2066 82.729
2067 82.634
2068 82.484
2069 82.414
2070 82.514
2071 82.624
2072 82.923
2073 83.367
2074 83.863
2075 84.341
2076 84.656
2077 85.004
2078 85.37
2079 85.739
2080 86.1
2081 86.272
2082 86.467
2083 86.663
2084 86.851
2085 87.045
2086 87.011
2087 86.979
2088 86.996
2089 87.077
2090 87.191
2091 87.053
2092 87.02
2093 87.034
2094 87.058
2095 87.107
2096 87.011
2097 86.927
2098 86.891
2099 86.964
2100 87.161