Year Years 1950 62.887 1951 63.297 1952 64.075 1953 64.77 1954 65.382 1955 65.91 1956 66.354 1957 66.715 1958 66.994 1959 67.191 1960 67.308 1961 67.35 1962 67.325 1963 67.245 1964 67.127 1965 66.989 1966 66.847 1967 66.715 1968 66.603 1969 66.523 1970 66.484 1971 66.492 1972 66.539 1973 66.613 1974 66.709 1975 66.815 1976 66.916 1977 67.003 1978 67.071 1979 67.119 1980 67.153 1981 67.181 1982 67.216 1983 67.269 1984 67.345 1985 67.446 1986 67.567 1987 67.703 1988 67.852 1989 68.018 1990 68.208 1991 68.434 1992 68.703 1993 69.013 1994 69.359 1995 69.731 1996 70.112 1997 70.489 1998 70.848 1999 71.185 2000 71.5 2001 71.8 2002 72.096 2003 72.396 2004 72.702 2005 73.013 2006 73.327 2007 73.639 2008 73.942 2009 74.234 2010 74.511 2011 74.768 2012 75.006 2013 75.225 2014 75.427 2015 75.617 2016 75.797 2017 75.972 2018 76.148 2019 76.327 2020 76.51 2021 76.696 2022 76.883 2023 77.07 2024 77.257 2025 77.443 2026 77.63 2027 77.817 2028 78.006 2029 78.196 2030 78.387 2031 78.579 2032 78.772 2033 78.966 2034 79.16 2035 79.354 2036 79.549 2037 79.745 2038 79.94 2039 80.136 2040 80.331 2041 80.525 2042 80.717 2043 80.907 2044 81.093 2045 81.276 2046 81.453 2047 81.626 2048 81.794 2049 81.956 2050 82.113 2051 82.264 2052 82.411 2053 82.553 2054 82.692 2055 82.827 2056 82.959 2057 83.088 2058 83.215 2059 83.341 2060 83.465 2061 83.589 2062 83.713 2063 83.836 2064 83.959 2065 84.081 2066 84.201 2067 84.32 2068 84.436 2069 84.549 2070 84.66 2071 84.77 2072 84.878 2073 84.986 2074 85.094 2075 85.202 2076 85.309 2077 85.416 2078 85.522 2079 85.628 2080 85.734 2081 85.841 2082 85.949 2083 86.058 2084 86.169 2085 86.28 2086 86.391 2087 86.501 2088 86.61 2089 86.718 2090 86.825 2091 86.931 2092 87.038 2093 87.146 2094 87.254 2095 87.365 2096 87.477 2097 87.591 2098 87.706 2099 87.824