Year,Age 1997.043796,122.0051784 1998.868613,118.9899163 1998.017032,115.0537231 2001.240876,115.0764927 2002.335766,115.0769611 2005.194647,113.9872751 2003.126521,114.0505614 2004.221411,113.0242919 2005.924574,111.9768922 1994.914842,111.9935725 1996.07056,114.0475428 2000.085158,114.0064796 1993.090024,116.9981394 1993.941606,115.0091989 1991.934307,114.0029926 1991.143552,111.9705687 1989.927007,111.9700483 1988.649635,112.0550633 1987.919708,114.0012751 1986.885645,114.0222231 1984.939173,113.9786096 1986.155718,112.9523921 1982.871046,113.015158 1981.89781,113.0575224 1980.742092,112.9714665 1983.965937,110.9621505 1979.647202,110.9603029 1977.822384,110.9809126 1979.038929,109.9119143 1975.145985,110.9797676 1973.138686,112.0056469 1969.671533,110.9774256 1968.029197,111.0195038