Year Years 1950 42.178 1951 42.49 1952 43.113 1953 43.732 1954 44.348 1955 44.961 1956 45.57 1957 46.177 1958 46.78 1959 47.38 1960 47.979 1961 48.575 1962 49.171 1963 49.766 1964 50.364 1965 50.964 1966 51.569 1967 52.18 1968 52.796 1969 53.417 1970 54.042 1971 54.67 1972 55.299 1973 55.927 1974 56.554 1975 57.182 1976 57.818 1977 58.463 1978 59.113 1979 59.758 1980 60.382 1981 60.966 1982 61.497 1983 61.973 1984 62.395 1985 62.775 1986 63.131 1987 63.484 1988 63.854 1989 64.248 1990 64.673 1991 65.127 1992 65.598 1993 66.078 1994 66.56 1995 67.041 1996 67.517 1997 67.985 1998 68.444 1999 68.889 2000 69.319 2001 69.732 2002 70.129 2003 70.512 2004 70.88 2005 71.235 2006 71.58 2007 71.917 2008 72.245 2009 72.566 2010 72.877 2011 73.175 2012 73.458 2013 73.726 2014 73.977 2015 74.215 2016 74.441 2017 74.658 2018 74.869 2019 75.077 2020 75.282 2021 75.485 2022 75.685 2023 75.882 2024 76.076 2025 76.267 2026 76.455 2027 76.641 2028 76.823 2029 77.003 2030 77.18 2031 77.355 2032 77.527 2033 77.696 2034 77.863 2035 78.028 2036 78.191 2037 78.352 2038 78.511 2039 78.668 2040 78.825 2041 78.981 2042 79.136 2043 79.29 2044 79.443 2045 79.596 2046 79.747 2047 79.896 2048 80.043 2049 80.188 2050 80.331 2051 80.472 2052 80.611 2053 80.749 2054 80.886 2055 81.022 2056 81.158 2057 81.295 2058 81.432 2059 81.569 2060 81.707 2061 81.844 2062 81.982 2063 82.118 2064 82.252 2065 82.385 2066 82.516 2067 82.645 2068 82.772 2069 82.898 2070 83.022 2071 83.147 2072 83.271 2073 83.396 2074 83.521 2075 83.647 2076 83.772 2077 83.896 2078 84.02 2079 84.141 2080 84.262 2081 84.382 2082 84.502 2083 84.621 2084 84.741 2085 84.861 2086 84.981 2087 85.1 2088 85.219 2089 85.338 2090 85.457 2091 85.574 2092 85.692 2093 85.809 2094 85.925 2095 86.042 2096 86.157 2097 86.273 2098 86.388 2099 86.502