Year Years 1950 64.462 1951 64.762 1952 65.334 1953 65.85 1954 66.311 1955 66.716 1956 67.066 1957 67.364 1958 67.611 1959 67.813 1960 67.977 1961 68.109 1962 68.217 1963 68.31 1964 68.393 1965 68.469 1966 68.536 1967 68.591 1968 68.636 1969 68.673 1970 68.709 1971 68.75 1972 68.802 1973 68.868 1974 68.953 1975 69.061 1976 69.194 1977 69.349 1978 69.523 1979 69.712 1980 69.913 1981 70.12 1982 70.331 1983 70.541 1984 70.75 1985 70.957 1986 71.168 1987 71.384 1988 71.606 1989 71.832 1990 72.053 1991 72.256 1992 72.439 1993 72.601 1994 72.749 1995 72.9 1996 73.072 1997 73.282 1998 73.542 1999 73.853 2000 74.216 2001 74.624 2002 75.059 2003 75.504 2004 75.946 2005 76.373 2006 76.777 2007 77.156 2008 77.508 2009 77.831 2010 78.123 2011 78.386 2012 78.628 2013 78.854 2014 79.069 2015 79.277 2016 79.481 2017 79.683 2018 79.885 2019 80.088 2020 80.294 2021 80.505 2022 80.719 2023 80.934 2024 81.149 2025 81.364 2026 81.577 2027 81.787 2028 81.992 2029 82.192 2030 82.384 2031 82.568 2032 82.745 2033 82.913 2034 83.075 2035 83.231 2036 83.38 2037 83.525 2038 83.666 2039 83.804 2040 83.941 2041 84.075 2042 84.207 2043 84.337 2044 84.465 2045 84.591 2046 84.716 2047 84.84 2048 84.962 2049 85.083 2050 85.203 2051 85.323 2052 85.441 2053 85.559 2054 85.677 2055 85.795 2056 85.913 2057 86.032 2058 86.151 2059 86.27 2060 86.39 2061 86.51 2062 86.629 2063 86.748 2064 86.867 2065 86.985 2066 87.103 2067 87.222 2068 87.341 2069 87.461 2070 87.581 2071 87.7 2072 87.819 2073 87.938 2074 88.055 2075 88.172 2076 88.288 2077 88.404 2078 88.52 2079 88.636 2080 88.752 2081 88.867 2082 88.981 2083 89.095 2084 89.208 2085 89.32 2086 89.432 2087 89.545 2088 89.659 2089 89.773 2090 89.888 2091 90.004 2092 90.121 2093 90.237 2094 90.354 2095 90.47 2096 90.586 2097 90.702 2098 90.818 2099 90.933