Year Years 1950 41.717 1951 41.873 1952 42.195 1953 42.536 1954 42.896 1955 43.276 1956 43.673 1957 44.086 1958 44.511 1959 44.943 1960 45.375 1961 45.802 1962 46.221 1963 46.633 1964 47.047 1965 47.485 1966 47.977 1967 48.54 1968 49.172 1969 49.863 1970 50.581 1971 51.282 1972 51.928 1973 52.494 1974 52.972 1975 53.374 1976 53.726 1977 54.066 1978 54.42 1979 54.798 1980 55.199 1981 55.61 1982 56.011 1983 56.386 1984 56.728 1985 57.038 1986 57.322 1987 57.585 1988 57.834 1989 58.065 1990 58.273 1991 58.448 1992 58.585 1993 58.68 1994 58.738 1995 58.758 1996 58.743 1997 58.704 1998 58.658 1999 58.621 2000 58.613 2001 58.653 2002 58.751 2003 58.914 2004 59.149 2005 59.463 2006 59.861 2007 60.328 2008 60.844 2009 61.388 2010 61.932 2011 62.447 2012 62.914 2013 63.321 2014 63.661 2015 63.937 2016 64.162 2017 64.36 2018 64.55 2019 64.742 2020 64.942 2021 65.149 2022 65.359 2023 65.565 2024 65.769 2025 65.97 2026 66.169 2027 66.365 2028 66.559 2029 66.751 2030 66.94 2031 67.126 2032 67.31 2033 67.491 2034 67.67 2035 67.846 2036 68.022 2037 68.195 2038 68.368 2039 68.541 2040 68.713 2041 68.885 2042 69.056 2043 69.228 2044 69.399 2045 69.569 2046 69.738 2047 69.907 2048 70.073 2049 70.238 2050 70.401 2051 70.562 2052 70.721 2053 70.879 2054 71.034 2055 71.189 2056 71.342 2057 71.495 2058 71.647 2059 71.799 2060 71.951 2061 72.103 2062 72.255 2063 72.408 2064 72.56 2065 72.712 2066 72.864 2067 73.014 2068 73.163 2069 73.311 2070 73.458 2071 73.604 2072 73.749 2073 73.893 2074 74.037 2075 74.181 2076 74.324 2077 74.468 2078 74.611 2079 74.754 2080 74.898 2081 75.043 2082 75.19 2083 75.339 2084 75.488 2085 75.638 2086 75.786 2087 75.933 2088 76.076 2089 76.217 2090 76.355 2091 76.491 2092 76.626 2093 76.761 2094 76.896 2095 77.033 2096 77.17 2097 77.309 2098 77.449 2099 77.591