Year Number
1950 70.767
1951 72.272
1952 72.479
1953 72.862
1954 73.886
1955 75.381
1956 76.96
1957 79.288
1958 81.675
1959 83.396
1960 84.145
1961 85.578
1962 85.761
1963 85.164
1964 84.477
1965 84.013
1966 84.272
1967 84.564
1968 84.792
1969 84.698
1970 84.158
1971 84.15
1972 83.694
1973 82.928
1974 82.104
1975 81.38
1976 81.037
1977 80.872
1978 80.806
1979 80.72
1980 80.581
1981 80.928
1982 81.09
1983 81.193
1984 81.411
1985 81.804
1986 82.374
1987 83.06
1988 83.728
1989 84.127
1990 84.091
1991 84.237
1992 83.712
1993 82.688
1994 81.427
1995 80.065
1996 78.195
1997 76.445
1998 74.687
1999 72.764
2000 70.674
2001 68.757
2002 66.802
2003 64.893
2004 63.138
2005 61.59
2006 60.6
2007 59.606
2008 58.772
2009 58.324
2010 58.365
2011 58.597
2012 59.473
2013 60.667
2014 61.69
2015 62.286
2016 63.308
2017 63.553
2018 63.36
2019 63.219
2020 63.325
2021 63.008
2022 63.094
2023 63.278
2024 63.134
2025 62.502
2026 61.811
2027 60.729
2028 59.419
2029 58.164
2030 57.116
2031 56.301
2032 55.643
2033 55.125
2034 54.688
2035 54.307
2036 54.109
2037 53.955
2038 53.864
2039 53.856
2040 53.934
2041 54.146
2042 54.397
2043 54.675
2044 54.963
2045 55.25
2046 55.53
2047 55.799
2048 56.048
2049 56.273
2050 56.474
2051 56.669
2052 56.837
2053 56.957
2054 57.003
2055 56.968
2056 56.873
2057 56.708
2058 56.49
2059 56.239
2060 55.972
2061 55.704
2062 55.417
2063 55.132
2064 54.88
2065 54.68
2066 54.534
2067 54.441
2068 54.387
2069 54.351
2070 54.321
2071 54.297
2072 54.268
2073 54.281
2074 54.406
2075 54.679
2076 55.089
2077 55.638
2078 56.27
2079 56.894
2080 57.451
2081 57.939
2082 58.375
2083 58.764
2084 59.126
2085 59.475
2086 59.766
2087 60.044
2088 60.313
2089 60.58
2090 60.852
2091 61.052
2092 61.26
2093 61.49
2094 61.76
2095 62.08
2096 62.329
2097 62.635
2098 62.998
2099 63.412
2100 63.873