Year Years 1950 54.253 1951 55.014 1952 56.477 1953 57.821 1954 59.047 1955 60.155 1956 61.144 1957 62.018 1958 62.778 1959 63.43 1960 63.979 1961 64.433 1962 64.802 1963 65.096 1964 65.327 1965 65.503 1966 65.629 1967 65.707 1968 65.74 1969 65.732 1970 65.681 1971 65.579 1972 65.426 1973 65.228 1974 64.999 1975 64.754 1976 64.511 1977 64.285 1978 64.097 1979 63.962 1980 63.911 1981 63.974 1982 64.147 1983 64.404 1984 64.713 1985 65.001 1986 65.183 1987 65.205 1988 65.046 1989 64.717 1990 64.265 1991 63.767 1992 63.315 1993 62.986 1994 62.818 1995 62.831 1996 63.021 1997 63.337 1998 63.734 1999 64.19 2000 64.676 2001 65.169 2002 65.66 2003 66.145 2004 66.619 2005 67.1 2006 67.615 2007 68.184 2008 68.812 2009 69.486 2010 70.172 2011 70.828 2012 71.417 2013 71.913 2014 72.308 2015 72.608 2016 72.833 2017 73.02 2018 73.201 2019 73.39 2020 73.596 2021 73.821 2022 74.054 2023 74.288 2024 74.523 2025 74.759 2026 74.995 2027 75.232 2028 75.468 2029 75.705 2030 75.942 2031 76.179 2032 76.416 2033 76.652 2034 76.888 2035 77.121 2036 77.352 2037 77.58 2038 77.803 2039 78.021 2040 78.233 2041 78.438 2042 78.636 2043 78.827 2044 79.011 2045 79.189 2046 79.359 2047 79.523 2048 79.682 2049 79.836 2050 79.985 2051 80.131 2052 80.274 2053 80.415 2054 80.553 2055 80.689 2056 80.823 2057 80.956 2058 81.086 2059 81.214 2060 81.341 2061 81.466 2062 81.59 2063 81.714 2064 81.836 2065 81.958 2066 82.08 2067 82.2 2068 82.32 2069 82.438 2070 82.557 2071 82.675 2072 82.792 2073 82.91 2074 83.028 2075 83.146 2076 83.264 2077 83.381 2078 83.498 2079 83.615 2080 83.731 2081 83.847 2082 83.963 2083 84.079 2084 84.196 2085 84.312 2086 84.427 2087 84.541 2088 84.655 2089 84.768 2090 84.88 2091 84.992 2092 85.105 2093 85.218 2094 85.332 2095 85.447 2096 85.563 2097 85.68 2098 85.798 2099 85.918