Year Years 1950 37.188 1951 37.316 1952 37.591 1953 37.899 1954 38.241 1955 38.616 1956 39.027 1957 39.474 1958 39.959 1959 40.486 1960 41.06 1961 41.686 1962 42.369 1963 43.112 1964 43.918 1965 44.791 1966 45.733 1967 46.741 1968 47.804 1969 48.91 1970 50.052 1971 51.219 1972 52.4 1973 53.58 1974 54.743 1975 55.876 1976 56.972 1977 58.026 1978 59.032 1979 59.983 1980 60.865 1981 61.667 1982 62.39 1983 63.041 1984 63.631 1985 64.175 1986 64.694 1987 65.206 1988 65.724 1989 66.253 1990 66.791 1991 67.328 1992 67.848 1993 68.338 1994 68.792 1995 69.209 1996 69.59 1997 69.94 1998 70.265 1999 70.568 2000 70.847 2001 71.104 2002 71.337 2003 71.549 2004 71.742 2005 71.919 2006 72.081 2007 72.232 2008 72.376 2009 72.517 2010 72.662 2011 72.814 2012 72.975 2013 73.146 2014 73.328 2015 73.519 2016 73.718 2017 73.919 2018 74.119 2019 74.317 2020 74.511 2021 74.7 2022 74.886 2023 75.07 2024 75.252 2025 75.432 2026 75.613 2027 75.793 2028 75.975 2029 76.157 2030 76.34 2031 76.524 2032 76.707 2033 76.89 2034 77.072 2035 77.252 2036 77.432 2037 77.61 2038 77.789 2039 77.966 2040 78.144 2041 78.323 2042 78.501 2043 78.681 2044 78.861 2045 79.043 2046 79.225 2047 79.408 2048 79.592 2049 79.776 2050 79.96 2051 80.144 2052 80.328 2053 80.512 2054 80.695 2055 80.877 2056 81.06 2057 81.241 2058 81.422 2059 81.603 2060 81.781 2061 81.959 2062 82.135 2063 82.308 2064 82.479 2065 82.647 2066 82.811 2067 82.973 2068 83.13 2069 83.284 2070 83.434 2071 83.58 2072 83.723 2073 83.862 2074 83.997 2075 84.128 2076 84.256 2077 84.38 2078 84.501 2079 84.619 2080 84.734 2081 84.847 2082 84.958 2083 85.068 2084 85.177 2085 85.285 2086 85.392 2087 85.497 2088 85.602 2089 85.705 2090 85.807 2091 85.909 2092 86.011 2093 86.112 2094 86.213 2095 86.315 2096 86.417 2097 86.519 2098 86.621 2099 86.723