Year Years
1950 38.607
1951 38.72
1952 38.929
1953 39.103
1954 39.242
1955 39.348
1956 39.425
1957 39.478
1958 39.515
1959 39.555
1960 39.613
1961 39.705
1962 39.835
1963 39.994
1964 40.15
1965 40.306
1966 40.468
1967 40.581
1968 40.547
1969 40.249
1970 39.319
1971 37.325
1972 34.187
1973 30.088
1974 25.398
1975 20.926
1976 17.657
1977 16.286
1978 17.162
1979 20.253
1980 25.118
1981 30.987
1982 36.847
1983 41.889
1984 45.743
1985 48.263
1986 49.589
1987 50.23
1988 50.623
1989 50.916
1990 51.213
1991 51.55
1992 51.882
1993 52.192
1994 52.519
1995 52.908
1996 53.387
1997 53.958
1998 54.616
1999 55.361
2000 56.186
2001 57.078
2002 58.007
2003 58.941
2004 59.858
2005 60.738
2006 61.566
2007 62.34
2008 63.058
2009 63.715
2010 64.307
2011 64.833
2012 65.303
2013 65.729
2014 66.116
2015 66.474
2016 66.809
2017 67.127
2018 67.431
2019 67.728
2020 68.021
2021 68.309
2022 68.589
2023 68.861
2024 69.124
2025 69.379
2026 69.626
2027 69.867
2028 70.102
2029 70.332
2030 70.557
2031 70.778
2032 70.996
2033 71.21
2034 71.422
2035 71.633
2036 71.842
2037 72.051
2038 72.259
2039 72.466
2040 72.672
2041 72.877
2042 73.079
2043 73.278
2044 73.474
2045 73.668
2046 73.859
2047 74.048
2048 74.236
2049 74.423
2050 74.609
2051 74.794
2052 74.978
2053 75.16
2054 75.342
2055 75.524
2056 75.707
2057 75.89
2058 76.075
2059 76.261
2060 76.448
2061 76.636
2062 76.825
2063 77.014
2064 77.203
2065 77.391
2066 77.579
2067 77.766
2068 77.951
2069 78.136
2070 78.321
2071 78.505
2072 78.69
2073 78.876
2074 79.062
2075 79.247
2076 79.432
2077 79.616
2078 79.798
2079 79.979
2080 80.158
2081 80.337
2082 80.515
2083 80.693
2084 80.872
2085 81.05
2086 81.227
2087 81.403
2088 81.576
2089 81.747
2090 81.915
2091 82.08
2092 82.242
2093 82.401
2094 82.557
2095 82.711
2096 82.862
2097 83.009
2098 83.155
2099 83.297