Year Number
1950 42.799
1951 44.422
1952 46.025
1953 48.714
1954 52.58
1955 57.129
1956 60.995
1957 66.097
1958 71.444
1959 76.118
1960 79.923
1961 83.73
1962 85.813
1963 87.235
1964 88.683
1965 89.824
1966 91.469
1967 91.351
1968 89.435
1969 86.082
1970 81.795
1971 76.177
1972 71.298
1973 66.999
1974 63.01
1975 59.166
1976 57.07
1977 54.67
1978 52.345
1979 50.694
1980 50.084
1981 49.002
1982 48.591
1983 48.607
1984 48.529
1985 48.071
1986 48.628
1987 48.558
1988 48.122
1989 47.63
1990 47.2
1991 48.124
1992 48.691
1993 49.052
1994 49.219
1995 49.117
1996 48.476
1997 47.657
1998 46.549
1999 45.065
2000 43.267
2001 40.499
2002 37.997
2003 35.853
2004 34.086
2005 32.635
2006 30.874
2007 29.064
2008 27.36
2009 25.923
2010 24.881
2011 25.034
2012 25.456
2013 26.17
2014 27.108
2015 28.209
2016 29.764
2017 31.34
2018 32.998
2019 34.816
2020 36.811
2021 38.727
2022 40.847
2023 43.047
2024 45.153
2025 47.079
2026 48.908
2027 50.527
2028 51.942
2029 53.194
2030 54.315
2031 55.21
2032 55.928
2033 56.525
2034 57.075
2035 57.637
2036 58.092
2037 58.583
2038 59.084
2039 59.541
2040 59.936
2041 60.192
2042 60.378
2043 60.614
2044 61.069
2045 61.845
2046 62.825
2047 64.091
2048 65.602
2049 67.262
2050 68.995
2051 70.72
2052 72.524
2053 74.341
2054 76.067
2055 77.619
2056 78.894
2057 79.979
2058 80.855
2059 81.526
2060 82.017
2061 82.187
2062 82.181
2063 82.018
2064 81.7
2065 81.227
2066 80.426
2067 79.542
2068 78.597
2069 77.655
2070 76.791
2071 75.812
2072 74.903
2073 74.151
2074 73.625
2075 73.322
2076 72.985
2077 72.92
2078 73.056
2079 73.283
2080 73.557
2081 73.743
2082 74.023
2083 74.374
2084 74.786
2085 75.266
2086 75.64
2087 76.063
2088 76.539
2089 77.066
2090 77.633
2091 78.01
2092 78.413
2093 78.828
2094 79.252
2095 79.689
2096 79.884
2097 80.073
2098 80.278
2099 80.529
2100 80.832