Year Years 1950 50.633 1951 51.152 1952 52.168 1953 53.139 1954 54.065 1955 54.946 1956 55.782 1957 56.573 1958 57.319 1959 58.021 1960 58.68 1961 59.298 1962 59.879 1963 60.429 1964 60.954 1965 61.466 1966 61.975 1967 62.487 1968 63.003 1969 63.524 1970 64.048 1971 64.571 1972 65.082 1973 65.569 1974 66.024 1975 66.431 1976 66.773 1977 67.05 1978 67.266 1979 67.431 1980 67.577 1981 67.748 1982 67.964 1983 68.226 1984 68.515 1985 68.755 1986 68.849 1987 68.741 1988 68.428 1989 67.952 1990 67.432 1991 67.025 1992 66.86 1993 67.014 1994 67.49 1995 68.23 1996 69.121 1997 70.008 1998 70.77 1999 71.356 2000 71.751 2001 71.979 2002 72.119 2003 72.237 2004 72.355 2005 72.489 2006 72.641 2007 72.8 2008 72.958 2009 73.118 2010 73.283 2011 73.452 2012 73.626 2013 73.804 2014 73.986 2015 74.172 2016 74.361 2017 74.551 2018 74.741 2019 74.931 2020 75.12 2021 75.308 2022 75.496 2023 75.683 2024 75.871 2025 76.059 2026 76.247 2027 76.436 2028 76.625 2029 76.814 2030 77.004 2031 77.194 2032 77.384 2033 77.574 2034 77.764 2035 77.954 2036 78.144 2037 78.334 2038 78.525 2039 78.716 2040 78.908 2041 79.1 2042 79.293 2043 79.487 2044 79.682 2045 79.878 2046 80.075 2047 80.273 2048 80.472 2049 80.671 2050 80.869 2051 81.067 2052 81.264 2053 81.459 2054 81.651 2055 81.839 2056 82.023 2057 82.203 2058 82.378 2059 82.548 2060 82.712 2061 82.872 2062 83.027 2063 83.178 2064 83.324 2065 83.468 2066 83.608 2067 83.746 2068 83.882 2069 84.015 2070 84.145 2071 84.273 2072 84.398 2073 84.521 2074 84.64 2075 84.757 2076 84.872 2077 84.986 2078 85.099 2079 85.212 2080 85.323 2081 85.434 2082 85.544 2083 85.653 2084 85.762 2085 85.87 2086 85.978 2087 86.087 2088 86.197 2089 86.307 2090 86.418 2091 86.53 2092 86.643 2093 86.755 2094 86.868 2095 86.98 2096 87.092 2097 87.204 2098 87.316 2099 87.427