Year Years 1950 42.114 1951 42.285 1952 42.643 1953 43.031 1954 43.451 1955 43.9 1956 44.376 1957 44.878 1958 45.399 1959 45.928 1960 46.455 1961 46.97 1962 47.464 1963 47.935 1964 48.39 1965 48.852 1966 49.348 1967 49.9 1968 50.517 1969 51.198 1970 51.924 1971 52.669 1972 53.401 1973 54.098 1974 54.748 1975 55.35 1976 55.915 1977 56.46 1978 57.001 1979 57.544 1980 58.089 1981 58.636 1982 59.178 1983 59.711 1984 60.234 1985 60.748 1986 61.252 1987 61.748 1988 62.239 1989 62.725 1990 63.208 1991 63.69 1992 64.172 1993 64.653 1994 65.133 1995 65.613 1996 66.094 1997 66.574 1998 67.049 1999 67.514 2000 67.965 2001 68.395 2002 68.799 2003 69.176 2004 69.524 2005 69.84 2006 70.124 2007 70.381 2008 70.616 2009 70.836 2010 71.046 2011 71.254 2012 71.464 2013 71.678 2014 71.9 2015 72.13 2016 72.366 2017 72.603 2018 72.837 2019 73.068 2020 73.296 2021 73.52 2022 73.743 2023 73.966 2024 74.188 2025 74.41 2026 74.63 2027 74.849 2028 75.066 2029 75.281 2030 75.494 2031 75.706 2032 75.917 2033 76.129 2034 76.34 2035 76.552 2036 76.763 2037 76.973 2038 77.183 2039 77.392 2040 77.6 2041 77.809 2042 78.018 2043 78.227 2044 78.438 2045 78.649 2046 78.861 2047 79.073 2048 79.284 2049 79.495 2050 79.706 2051 79.917 2052 80.129 2053 80.342 2054 80.554 2055 80.765 2056 80.973 2057 81.177 2058 81.377 2059 81.572 2060 81.761 2061 81.946 2062 82.126 2063 82.303 2064 82.476 2065 82.646 2066 82.812 2067 82.973 2068 83.13 2069 83.283 2070 83.431 2071 83.574 2072 83.713 2073 83.848 2074 83.98 2075 84.109 2076 84.236 2077 84.362 2078 84.487 2079 84.611 2080 84.735 2081 84.858 2082 84.979 2083 85.099 2084 85.217 2085 85.334 2086 85.449 2087 85.564 2088 85.678 2089 85.792 2090 85.906 2091 86.02 2092 86.133 2093 86.247 2094 86.361 2095 86.475 2096 86.589 2097 86.703 2098 86.817 2099 86.931