Year Years 1950 42.717 1951 42.941 1952 43.386 1953 43.824 1954 44.255 1955 44.679 1956 45.094 1957 45.503 1958 45.902 1959 46.292 1960 46.672 1961 47.041 1962 47.401 1963 47.754 1964 48.105 1965 48.465 1966 48.849 1967 49.26 1968 49.699 1969 50.161 1970 50.638 1971 51.121 1972 51.594 1973 52.037 1974 52.43 1975 52.759 1976 53.013 1977 53.185 1978 53.272 1979 53.263 1980 53.147 1981 52.91 1982 52.557 1983 52.102 1984 51.559 1985 50.941 1986 50.26 1987 49.54 1988 48.811 1989 48.102 1990 47.437 1991 46.831 1992 46.295 1993 45.845 1994 45.502 1995 45.287 1996 45.214 1997 45.286 1998 45.504 1999 45.873 2000 46.4 2001 47.091 2002 47.936 2003 48.917 2004 50.019 2005 51.237 2006 52.575 2007 54.014 2008 55.517 2009 57.039 2010 58.52 2011 59.904 2012 61.153 2013 62.243 2014 63.158 2015 63.898 2016 64.482 2017 64.955 2018 65.362 2019 65.727 2020 66.068 2021 66.397 2022 66.711 2023 67.013 2024 67.309 2025 67.605 2026 67.9 2027 68.191 2028 68.476 2029 68.755 2030 69.031 2031 69.303 2032 69.573 2033 69.841 2034 70.108 2035 70.374 2036 70.639 2037 70.901 2038 71.161 2039 71.418 2040 71.672 2041 71.922 2042 72.169 2043 72.413 2044 72.654 2045 72.891 2046 73.125 2047 73.357 2048 73.586 2049 73.813 2050 74.037 2051 74.261 2052 74.483 2053 74.705 2054 74.925 2055 75.143 2056 75.36 2057 75.574 2058 75.785 2059 75.994 2060 76.199 2061 76.402 2062 76.603 2063 76.802 2064 76.998 2065 77.193 2066 77.387 2067 77.579 2068 77.769 2069 77.957 2070 78.143 2071 78.325 2072 78.504 2073 78.679 2074 78.849 2075 79.014 2076 79.172 2077 79.325 2078 79.472 2079 79.615 2080 79.753 2081 79.887 2082 80.019 2083 80.15 2084 80.279 2085 80.409 2086 80.538 2087 80.668 2088 80.797 2089 80.925 2090 81.053 2091 81.181 2092 81.307 2093 81.433 2094 81.557 2095 81.68 2096 81.802 2097 81.922 2098 82.04 2099 82.158