Year Years
1950 39.712
1951 39.9
1952 40.264
1953 40.608
1954 40.929
1955 41.23
1956 41.51
1957 41.771
1958 42.015
1959 42.244
1960 42.465
1961 42.681
1962 42.9
1963 43.127
1964 43.367
1965 43.63
1966 43.922
1967 44.242
1968 44.584
1969 44.94
1970 45.295
1971 45.63
1972 45.93
1973 46.192
1974 46.415
1975 46.612
1976 46.8
1977 47
1978 47.225
1979 47.479
1980 47.757
1981 48.047
1982 48.335
1983 48.608
1984 48.864
1985 49.112
1986 49.365
1987 49.634
1988 49.918
1989 50.206
1990 50.464
1991 50.648
1992 50.735
1993 50.727
1994 50.646
1995 50.539
1996 50.469
1997 50.496
1998 50.665
1999 50.991
2000 51.478
2001 52.106
2002 52.825
2003 53.586
2004 54.359
2005 55.116
2006 55.84
2007 56.527
2008 57.175
2009 57.778
2010 58.333
2011 58.844
2012 59.325
2013 59.787
2014 60.235
2015 60.676
2016 61.112
2017 61.543
2018 61.97
2019 62.394
2020 62.817
2021 63.238
2022 63.656
2023 64.07
2024 64.48
2025 64.884
2026 65.285
2027 65.681
2028 66.073
2029 66.458
2030 66.838
2031 67.209
2032 67.573
2033 67.927
2034 68.272
2035 68.609
2036 68.938
2037 69.26
2038 69.575
2039 69.885
2040 70.189
2041 70.488
2042 70.78
2043 71.067
2044 71.348
2045 71.622
2046 71.892
2047 72.156
2048 72.415
2049 72.668
2050 72.916
2051 73.159
2052 73.395
2053 73.626
2054 73.851
2055 74.072
2056 74.288
2057 74.502
2058 74.712
2059 74.92
2060 75.124
2061 75.326
2062 75.523
2063 75.716
2064 75.905
2065 76.089
2066 76.269
2067 76.445
2068 76.619
2069 76.789
2070 76.958
2071 77.125
2072 77.291
2073 77.456
2074 77.619
2075 77.781
2076 77.942
2077 78.1
2078 78.257
2079 78.411
2080 78.564
2081 78.716
2082 78.868
2083 79.02
2084 79.172
2085 79.324
2086 79.475
2087 79.625
2088 79.772
2089 79.918
2090 80.061
2091 80.203
2092 80.343
2093 80.481
2094 80.618
2095 80.754
2096 80.89
2097 81.024
2098 81.157
2099 81.29