Year Number
1950 81.224
1951 81.979
1952 82.917
1953 83.782
1954 84.474
1955 84.986
1956 86.447
1957 87.101
1958 87.207
1959 86.957
1960 86.333
1961 84.993
1962 83.871
1963 82.782
1964 81.442
1965 79.756
1966 78.322
1967 76.355
1968 74.169
1969 72.151
1970 70.432
1971 67.937
1972 65.98
1973 64.224
1974 62.222
1975 59.825
1976 58.544
1977 56.616
1978 54.26
1979 51.951
1980 50.071
1981 48.843
1982 47.967
1983 47.487
1984 47.162
1985 46.727
1986 47.589
1987 47.987
1988 47.893
1989 47.602
1990 47.501
1991 45.948
1992 44.879
1993 44.298
1994 43.932
1995 43.534
1996 43.983
1997 44.241
1998 44.332
1999 44.377
2000 44.421
2001 44.245
2002 44.05
2003 43.775
2004 43.408
2005 42.983
2006 43.143
2007 43.478
2008 43.958
2009 44.531
2010 45.157
2011 44.991
2012 44.705
2013 44.353
2014 44.07
2015 43.952
2016 43.795
2017 43.948
2018 44.318
2019 44.738
2020 45.151
2021 45.867
2022 46.49
2023 47.151
2024 48.052
2025 49.288
2026 50.763
2027 52.534
2028 54.493
2029 56.426
2030 58.187
2031 59.766
2032 61.134
2033 62.31
2034 63.372
2035 64.357
2036 65.167
2037 65.846
2038 66.378
2039 66.755
2040 66.978
2041 67.025
2042 66.921
2043 66.675
2044 66.296
2045 65.791
2046 65.23
2047 64.599
2048 63.896
2049 63.122
2050 62.305
2051 61.552
2052 60.767
2053 60.051
2054 59.589
2055 59.446
2056 59.765
2057 60.431
2058 61.343
2059 62.355
2060 63.375
2061 64.528
2062 65.703
2063 66.888
2064 68.081
2065 69.255
2066 70.402
2067 71.498
2068 72.543
2069 73.558
2070 74.544
2071 75.439
2072 76.325
2073 77.127
2074 77.749
2075 78.14
2076 78.187
2077 78.023
2078 77.706
2079 77.36
2080 77.081
2081 76.687
2082 76.35
2083 76.088
2084 75.934
2085 75.865
2086 75.724
2087 75.715
2088 75.821
2089 75.994
2090 76.234
2091 76.483
2092 76.815
2093 77.242
2094 77.726
2095 78.243
2096 78.669
2097 79.137
2098 79.624
2099 80.09
2100 80.533