Year Number
1950 82.338
1951 82.013
1952 81.189
1953 80.275
1954 79.494
1955 78.876
1956 79.092
1957 79.468
1958 79.861
1959 80.146
1960 80.297
1961 81.65
1962 82.564
1963 83.252
1964 83.998
1965 84.92
1966 86.461
1967 88.056
1968 89.551
1969 90.618
1970 91.031
1971 91.891
1972 92.371
1973 92.537
1974 92.626
1975 92.792
1976 93.18
1977 93.286
1978 93.146
1979 92.698
1980 91.934
1981 91.806
1982 91.139
1983 90.149
1984 89.091
1985 88.073
1986 87.353
1987 86.603
1988 85.757
1989 84.683
1990 83.334
1991 82.268
1992 80.968
1993 79.498
1994 77.95
1995 76.375
1996 75
1997 73.583
1998 72.139
1999 70.673
2000 69.196
2001 68.067
2002 66.879
2003 65.66
2004 64.434
2005 63.202
2006 62.291
2007 61.326
2008 60.32
2009 59.296
2010 58.263
2011 57.061
2012 55.931
2013 54.827
2014 53.686
2015 52.487
2016 51.361
2017 50.181
2018 49.018
2019 47.962
2020 47.052
2021 46.329
2022 45.71
2023 45.193
2024 44.763
2025 44.407
2026 44.144
2027 43.954
2028 43.82
2029 43.722
2030 43.646
2031 43.613
2032 43.602
2033 43.607
2034 43.615
2035 43.622
2036 43.635
2037 43.646
2038 43.681
2039 43.772
2040 43.935
2041 44.174
2042 44.474
2043 44.833
2044 45.249
2045 45.717
2046 46.225
2047 46.774
2048 47.369
2049 48.002
2050 48.661
2051 49.313
2052 49.978
2053 50.665
2054 51.377
2055 52.112
2056 52.835
2057 53.574
2058 54.338
2059 55.133
2060 55.958
2061 56.775
2062 57.615
2063 58.48
2064 59.371
2065 60.285
2066 61.179
2067 62.085
2068 63.004
2069 63.919
2070 64.808
2071 65.605
2072 66.372
2073 67.121
2074 67.867
2075 68.616
2076 69.307
2077 70
2078 70.703
2079 71.422
2080 72.157
2081 72.834
2082 73.53
2083 74.245
2084 74.967
2085 75.684
2086 76.295
2087 76.904
2088 77.515
2089 78.12
2090 78.711
2091 79.176
2092 79.635
2093 80.092
2094 80.541
2095 80.975
2096 81.283
2097 81.594
2098 81.909
2099 82.226
2100 82.542