Year Years 1950 35.399 1951 35.552 1952 35.858 1953 36.163 1954 36.468 1955 36.772 1956 37.075 1957 37.378 1958 37.681 1959 37.983 1960 38.285 1961 38.587 1962 38.89 1963 39.193 1964 39.497 1965 39.801 1966 40.104 1967 40.405 1968 40.706 1969 41.007 1970 41.3 1971 41.58 1972 41.847 1973 42.11 1974 42.381 1975 42.688 1976 43.067 1977 43.534 1978 44.089 1979 44.72 1980 45.393 1981 46.064 1982 46.688 1983 47.236 1984 47.7 1985 48.087 1986 48.421 1987 48.741 1988 49.079 1989 49.447 1990 49.855 1991 50.301 1992 50.772 1993 51.252 1994 51.732 1995 52.204 1996 52.658 1997 53.089 1998 53.493 1999 53.867 2000 54.207 2001 54.51 2002 54.784 2003 55.038 2004 55.282 2005 55.537 2006 55.821 2007 56.144 2008 56.508 2009 56.909 2010 57.326 2011 57.732 2012 58.103 2013 58.427 2014 58.703 2015 58.941 2016 59.161 2017 59.39 2018 59.653 2019 59.96 2020 60.321 2021 60.737 2022 61.196 2023 61.688 2024 62.206 2025 62.743 2026 63.293 2027 63.85 2028 64.408 2029 64.959 2030 65.499 2031 66.026 2032 66.541 2033 67.044 2034 67.533 2035 68.006 2036 68.46 2037 68.895 2038 69.314 2039 69.718 2040 70.109 2041 70.49 2042 70.865 2043 71.237 2044 71.606 2045 71.974 2046 72.34 2047 72.701 2048 73.056 2049 73.401 2050 73.735 2051 74.054 2052 74.357 2053 74.644 2054 74.916 2055 75.175 2056 75.424 2057 75.665 2058 75.902 2059 76.138 2060 76.374 2061 76.61 2062 76.846 2063 77.08 2064 77.313 2065 77.545 2066 77.778 2067 78.011 2068 78.243 2069 78.473 2070 78.701 2071 78.924 2072 79.142 2073 79.352 2074 79.556 2075 79.752 2076 79.941 2077 80.123 2078 80.3 2079 80.472 2080 80.641 2081 80.808 2082 80.973 2083 81.137 2084 81.3 2085 81.464 2086 81.627 2087 81.79 2088 81.953 2089 82.114 2090 82.275 2091 82.434 2092 82.592 2093 82.749 2094 82.903 2095 83.056 2096 83.208 2097 83.357 2098 83.505 2099 83.651