Year Years 1950 49.214 1951 49.439 1952 49.886 1953 50.325 1954 50.757 1955 51.181 1956 51.597 1957 52.006 1958 52.406 1959 52.798 1960 53.181 1961 53.555 1962 53.92 1963 54.275 1964 54.624 1965 54.965 1966 55.299 1967 55.628 1968 55.955 1969 56.284 1970 56.617 1971 56.957 1972 57.306 1973 57.668 1974 58.049 1975 58.464 1976 58.931 1977 59.451 1978 60.014 1979 60.603 1980 61.201 1981 61.795 1982 62.351 1983 62.829 1984 63.19 1985 63.386 1986 63.376 1987 63.147 1988 62.692 1989 62.009 1990 61.085 1991 59.914 1992 58.534 1993 57.005 1994 55.386 1995 53.728 1996 52.076 1997 50.481 1998 49.008 1999 47.725 2000 46.701 2001 45.985 2002 45.588 2003 45.511 2004 45.768 2005 46.389 2006 47.399 2007 48.755 2008 50.386 2009 52.209 2010 54.125 2011 56.033 2012 57.848 2013 59.494 2014 60.911 2015 62.05 2016 62.898 2017 63.509 2018 63.944 2019 64.238 2020 64.436 2021 64.583 2022 64.719 2023 64.876 2024 65.079 2025 65.342 2026 65.661 2027 66.008 2028 66.363 2029 66.719 2030 67.074 2031 67.425 2032 67.773 2033 68.119 2034 68.461 2035 68.798 2036 69.129 2037 69.454 2038 69.774 2039 70.09 2040 70.404 2041 70.719 2042 71.037 2043 71.359 2044 71.683 2045 72.008 2046 72.331 2047 72.65 2048 72.96 2049 73.261 2050 73.55 2051 73.827 2052 74.092 2053 74.347 2054 74.593 2055 74.831 2056 75.062 2057 75.288 2058 75.511 2059 75.731 2060 75.949 2061 76.164 2062 76.376 2063 76.584 2064 76.789 2065 76.991 2066 77.19 2067 77.388 2068 77.585 2069 77.779 2070 77.972 2071 78.163 2072 78.35 2073 78.534 2074 78.712 2075 78.885 2076 79.051 2077 79.211 2078 79.364 2079 79.512 2080 79.654 2081 79.793 2082 79.928 2083 80.063 2084 80.196 2085 80.329 2086 80.463 2087 80.595 2088 80.727 2089 80.859 2090 80.989 2091 81.118 2092 81.247 2093 81.374 2094 81.5 2095 81.625 2096 81.748 2097 81.871 2098 81.991 2099 82.111