Year Years 1950 37.035 1951 37.139 1952 37.359 1953 37.604 1954 37.874 1955 38.168 1956 38.486 1957 38.826 1958 39.188 1959 39.567 1960 39.96 1961 40.361 1962 40.768 1963 41.175 1964 41.581 1965 41.985 1966 42.39 1967 42.799 1968 43.214 1969 43.637 1970 44.063 1971 44.488 1972 44.911 1973 45.333 1974 45.76 1975 46.204 1976 46.68 1977 47.197 1978 47.757 1979 48.359 1980 48.996 1981 49.658 1982 50.328 1983 50.992 1984 51.64 1985 52.267 1986 52.874 1987 53.464 1988 54.038 1989 54.591 1990 55.118 1991 55.614 1992 56.073 1993 56.492 1994 56.866 1995 57.184 1996 57.434 1997 57.619 1998 57.748 1999 57.833 2000 57.895 2001 57.956 2002 58.036 2003 58.153 2004 58.319 2005 58.542 2006 58.825 2007 59.154 2008 59.513 2009 59.89 2010 60.27 2011 60.637 2012 60.98 2013 61.292 2014 61.568 2015 61.808 2016 62.018 2017 62.21 2018 62.393 2019 62.573 2020 62.753 2021 62.932 2022 63.108 2023 63.279 2024 63.447 2025 63.61 2026 63.771 2027 63.927 2028 64.081 2029 64.231 2030 64.379 2031 64.522 2032 64.662 2033 64.798 2034 64.93 2035 65.06 2036 65.187 2037 65.313 2038 65.437 2039 65.56 2040 65.682 2041 65.803 2042 65.922 2043 66.038 2044 66.152 2045 66.263 2046 66.371 2047 66.478 2048 66.583 2049 66.686 2050 66.788 2051 66.89 2052 66.992 2053 67.093 2054 67.195 2055 67.297 2056 67.398 2057 67.499 2058 67.599 2059 67.699 2060 67.797 2061 67.895 2062 67.993 2063 68.09 2064 68.187 2065 68.283 2066 68.378 2067 68.471 2068 68.564 2069 68.655 2070 68.745 2071 68.835 2072 68.926 2073 69.019 2074 69.112 2075 69.207 2076 69.303 2077 69.4 2078 69.498 2079 69.595 2080 69.693 2081 69.791 2082 69.89 2083 69.988 2084 70.087 2085 70.187 2086 70.287 2087 70.388 2088 70.49 2089 70.594 2090 70.699 2091 70.805 2092 70.914 2093 71.025 2094 71.137 2095 71.252 2096 71.369 2097 71.488 2098 71.609 2099 71.732