Year Years 1950 36.362 1951 37.006 1952 38.28 1953 39.524 1954 40.739 1955 41.926 1956 43.087 1957 44.224 1958 45.342 1959 46.451 1960 47.561 1961 48.68 1962 49.815 1963 50.963 1964 52.114 1965 53.25 1966 54.344 1967 55.374 1968 56.323 1969 57.184 1970 57.949 1971 58.617 1972 59.209 1973 59.749 1974 60.261 1975 60.78 1976 61.345 1977 61.973 1978 62.668 1979 63.424 1980 64.215 1981 65.001 1982 65.743 1983 66.408 1984 66.99 1985 67.492 1986 67.937 1987 68.357 1988 68.775 1989 69.198 1990 69.628 1991 70.061 1992 70.48 1993 70.867 1994 71.208 1995 71.481 1996 71.662 1997 71.746 1998 71.74 1999 71.656 2000 71.518 2001 71.358 2002 71.209 2003 71.096 2004 71.033 2005 71.02 2006 71.047 2007 71.093 2008 71.141 2009 71.191 2010 71.247 2011 71.32 2012 71.418 2013 71.549 2014 71.71 2015 71.898 2016 72.104 2017 72.319 2018 72.532 2019 72.738 2020 72.935 2021 73.122 2022 73.304 2023 73.483 2024 73.659 2025 73.832 2026 74.002 2027 74.168 2028 74.331 2029 74.491 2030 74.649 2031 74.804 2032 74.957 2033 75.109 2034 75.26 2035 75.41 2036 75.559 2037 75.707 2038 75.853 2039 75.999 2040 76.143 2041 76.287 2042 76.431 2043 76.575 2044 76.718 2045 76.86 2046 77.001 2047 77.14 2048 77.278 2049 77.413 2050 77.546 2051 77.677 2052 77.807 2053 77.934 2054 78.061 2055 78.188 2056 78.313 2057 78.439 2058 78.565 2059 78.691 2060 78.817 2061 78.942 2062 79.068 2063 79.192 2064 79.316 2065 79.439 2066 79.56 2067 79.679 2068 79.797 2069 79.914 2070 80.031 2071 80.148 2072 80.265 2073 80.384 2074 80.503 2075 80.622 2076 80.741 2077 80.857 2078 80.971 2079 81.084 2080 81.195 2081 81.306 2082 81.419 2083 81.533 2084 81.65 2085 81.769 2086 81.888 2087 82.007 2088 82.125 2089 82.242 2090 82.357 2091 82.471 2092 82.585 2093 82.698 2094 82.811 2095 82.924 2096 83.038 2097 83.152 2098 83.267 2099 83.382