Year Years 1950 57.414 1951 57.713 1952 58.332 1953 58.99 1954 59.686 1955 60.421 1956 61.188 1957 61.979 1958 62.781 1959 63.569 1960 64.313 1961 64.986 1962 65.558 1963 66.014 1964 66.355 1965 66.594 1966 66.758 1967 66.888 1968 67.018 1969 67.168 1970 67.352 1971 67.575 1972 67.824 1973 68.085 1974 68.356 1975 68.629 1976 68.9 1977 69.16 1978 69.404 1979 69.628 1980 69.827 1981 69.999 1982 70.147 1983 70.276 1984 70.389 1985 70.489 1986 70.579 1987 70.665 1988 70.751 1989 70.842 1990 70.946 1991 71.068 1992 71.21 1993 71.367 1994 71.537 1995 71.712 1996 71.882 1997 72.038 1998 72.173 1999 72.287 2000 72.379 2001 72.452 2002 72.514 2003 72.574 2004 72.638 2005 72.715 2006 72.81 2007 72.926 2008 73.061 2009 73.215 2010 73.382 2011 73.555 2012 73.727 2013 73.891 2014 74.044 2015 74.186 2016 74.319 2017 74.447 2018 74.574 2019 74.701 2020 74.829 2021 74.957 2022 75.086 2023 75.213 2024 75.338 2025 75.463 2026 75.587 2027 75.71 2028 75.833 2029 75.955 2030 76.077 2031 76.199 2032 76.319 2033 76.439 2034 76.558 2035 76.677 2036 76.795 2037 76.913 2038 77.031 2039 77.149 2040 77.267 2041 77.384 2042 77.501 2043 77.615 2044 77.729 2045 77.842 2046 77.954 2047 78.067 2048 78.18 2049 78.294 2050 78.407 2051 78.52 2052 78.632 2053 78.741 2054 78.85 2055 78.957 2056 79.063 2057 79.17 2058 79.277 2059 79.385 2060 79.494 2061 79.604 2062 79.714 2063 79.824 2064 79.933 2065 80.042 2066 80.149 2067 80.257 2068 80.364 2069 80.47 2070 80.577 2071 80.683 2072 80.788 2073 80.893 2074 80.998 2075 81.102 2076 81.205 2077 81.307 2078 81.409 2079 81.509 2080 81.609 2081 81.71 2082 81.812 2083 81.914 2084 82.018 2085 82.124 2086 82.229 2087 82.335 2088 82.441 2089 82.546 2090 82.651 2091 82.755 2092 82.859 2093 82.962 2094 83.066 2095 83.17 2096 83.274 2097 83.378 2098 83.482 2099 83.586