Year Number
1950 68.647
1951 71.539
1952 72.582
1953 73.801
1954 75.875
1955 78.632
1956 78.803
1957 81.16
1958 84.624
1959 87.768
1960 89.649
1961 88.557
1962 85.749
1963 81.86
1964 77.963
1965 74.593
1966 70.958
1967 67.773
1968 65.025
1969 62.654
1970 60.654
1971 58.355
1972 56.713
1973 55.447
1974 54.258
1975 53.06
1976 52.457
1977 51.655
1978 50.849
1979 50.29
1980 50.054
1981 50.153
1982 50.269
1983 50.435
1984 50.66
1985 50.94
1986 50.96
1987 51.274
1988 51.655
1989 51.814
1990 51.64
1991 51.758
1992 51.409
1993 50.793
1994 50.208
1995 49.8
1996 49.287
1997 48.955
1998 48.74
1999 48.506
2000 48.178
2001 48.026
2002 47.888
2003 47.755
2004 47.625
2005 47.536
2006 46.883
2007 46.503
2008 46.495
2009 46.946
2010 47.844
2011 48.281
2012 48.876
2013 49.55
2014 50.204
2015 50.785
2016 51.319
2017 51.789
2018 52.258
2019 52.8
2020 53.451
2021 54.177
2022 55.004
2023 55.905
2024 56.864
2025 57.886
2026 58.916
2027 59.996
2028 61.104
2029 62.174
2030 63.139
2031 63.957
2032 64.655
2033 65.261
2034 65.837
2035 66.442
2036 66.942
2037 67.441
2038 67.999
2039 68.669
2040 69.462
2041 70.242
2042 71.247
2043 72.317
2044 73.239
2045 73.913
2046 74.318
2047 74.502
2048 74.573
2049 74.687
2050 74.932
2051 75.136
2052 75.462
2053 75.95
2054 76.629
2055 77.519
2056 78.455
2057 79.652
2058 81.041
2059 82.506
2060 83.973
2061 85.229
2062 86.484
2063 87.705
2064 88.851
2065 89.875
2066 90.419
2067 90.82
2068 91.117
2069 91.331
2070 91.443
2071 91.154
2072 90.874
2073 90.529
2074 90.097
2075 89.626
2076 88.905
2077 88.18
2078 87.52
2079 86.976
2080 86.55
2081 85.854
2082 85.298
2083 84.907
2084 84.662
2085 84.547
2086 84.256
2087 84.163
2088 84.239
2089 84.455
2090 84.824
2091 85.079
2092 85.512
2093 86.1
2094 86.811
2095 87.612
2096 88.173
2097 88.803
2098 89.464
2099 90.13
2100 90.787