Year Years 1950 54.201 1951 54.44 1952 54.95 1953 55.528 1954 56.174 1955 56.886 1956 57.657 1957 58.479 1958 59.335 1959 60.196 1960 61.031 1961 61.804 1962 62.487 1963 63.062 1964 63.535 1965 63.932 1966 64.294 1967 64.672 1968 65.103 1969 65.602 1970 66.17 1971 66.796 1972 67.447 1973 68.096 1974 68.733 1975 69.357 1976 69.976 1977 70.595 1978 71.211 1979 71.807 1980 72.354 1981 72.821 1982 73.186 1983 73.442 1984 73.592 1985 73.648 1986 73.639 1987 73.597 1988 73.551 1989 73.514 1990 73.488 1991 73.462 1992 73.42 1993 73.356 1994 73.278 1995 73.199 1996 73.132 1997 73.096 1998 73.108 1999 73.18 2000 73.333 2001 73.583 2002 73.925 2003 74.343 2004 74.819 2005 75.321 2006 75.813 2007 76.264 2008 76.654 2009 76.97 2010 77.216 2011 77.404 2012 77.565 2013 77.721 2014 77.882 2015 78.055 2016 78.239 2017 78.428 2018 78.613 2019 78.797 2020 78.977 2021 79.152 2022 79.324 2023 79.492 2024 79.657 2025 79.819 2026 79.978 2027 80.136 2028 80.293 2029 80.449 2030 80.605 2031 80.76 2032 80.914 2033 81.067 2034 81.217 2035 81.366 2036 81.513 2037 81.659 2038 81.802 2039 81.944 2040 82.085 2041 82.224 2042 82.363 2043 82.501 2044 82.638 2045 82.774 2046 82.909 2047 83.043 2048 83.175 2049 83.307 2050 83.437 2051 83.568 2052 83.698 2053 83.828 2054 83.958 2055 84.088 2056 84.217 2057 84.345 2058 84.471 2059 84.595 2060 84.718 2061 84.84 2062 84.961 2063 85.082 2064 85.204 2065 85.325 2066 85.447 2067 85.57 2068 85.693 2069 85.815 2070 85.937 2071 86.059 2072 86.179 2073 86.298 2074 86.416 2075 86.533 2076 86.649 2077 86.763 2078 86.877 2079 86.991 2080 87.105 2081 87.219 2082 87.334 2083 87.449 2084 87.564 2085 87.68 2086 87.796 2087 87.911 2088 88.026 2089 88.14 2090 88.254 2091 88.368 2092 88.483 2093 88.598 2094 88.715 2095 88.832 2096 88.95 2097 89.069 2098 89.189 2099 89.311