Year Number
1950 56.517
1951 56.262
1952 55.911
1953 55.678
1954 55.597
1955 55.617
1956 55.657
1957 55.837
1958 56.05
1959 56.212
1960 56.299
1961 56.683
1962 56.943
1963 57.118
1964 57.26
1965 57.382
1966 57.69
1967 57.915
1968 58.072
1969 58.182
1970 58.242
1971 58.438
1972 58.783
1973 59.16
1974 59.45
1975 59.63
1976 59.919
1977 59.96
1978 59.878
1979 59.83
1980 59.879
1981 60.029
1982 60.183
1983 60.357
1984 60.545
1985 60.736
1986 60.592
1987 60.606
1988 60.646
1989 60.582
1990 60.389
1991 60.492
1992 60.376
1993 60.151
1994 59.971
1995 59.896
1996 60.033
1997 60.202
1998 60.369
1999 60.447
2000 60.38
2001 60.34
2002 60.253
2003 60.089
2004 59.84
2005 59.521
2006 59.167
2007 58.739
2008 58.264
2009 57.792
2010 57.357
2011 57.014
2012 56.687
2013 56.387
2014 56.119
2015 55.883
2016 55.698
2017 55.548
2018 55.436
2019 55.367
2020 55.343
2021 55.416
2022 55.527
2023 55.667
2024 55.823
2025 55.989
2026 56.196
2027 56.418
2028 56.634
2029 56.817
2030 56.952
2031 57.053
2032 57.107
2033 57.148
2034 57.225
2035 57.37
2036 57.558
2037 57.805
2038 58.103
2039 58.444
2040 58.82
2041 59.213
2042 59.657
2043 60.117
2044 60.539
2045 60.895
2046 61.157
2047 61.357
2048 61.539
2049 61.766
2050 62.073
2051 62.384
2052 62.776
2053 63.244
2054 63.777
2055 64.37
2056 64.95
2057 65.606
2058 66.311
2059 67.031
2060 67.749
2061 68.355
2062 68.955
2063 69.558
2064 70.167
2065 70.777
2066 71.232
2067 71.695
2068 72.168
2069 72.649
2070 73.138
2071 73.495
2072 73.89
2073 74.303
2074 74.728
2075 75.173
2076 75.473
2077 75.795
2078 76.159
2079 76.572
2080 77.025
2081 77.298
2082 77.626
2083 78.002
2084 78.413
2085 78.852
2086 79.111
2087 79.431
2088 79.796
2089 80.19
2090 80.611
2091 80.842
2092 81.118
2093 81.437
2094 81.798
2095 82.196
2096 82.381
2097 82.621
2098 82.908
2099 83.234
2100 83.588