1987 6.00826 49.8506 505.986 1.14091 1988 6.06496 50.2524 505.903 1.13766 1989 6.09307 50.988 520.825 1.13853 1990 6.08189 50.655 513.422 1.14079 1991 6.04495 50.254 510.172 1.14208 1992 6.11391 51.2256 522.871 1.1416 1993 6.14216 51.9185 535.765 1.14182 1994 6.13236 51.6321 530.424 1.13936 1995 6.13792 51.6621 529.967 1.13876 1996 6.18542 52.2964 536.297 1.14115 1997 6.18292 52.515 543.548 1.14128 1998 6.28512 54.0758 565.793 1.13427 1999 6.26164 53.5427 556.499 1.13622 2000 6.28625 53.9624 563.269 1.13816 2001 6.26705 53.642 558.632 1.13783 2002 6.30566 54.0592 561.74 1.1386 2003 6.31417 54.3099 567.631 1.13834 2004 6.34747 54.7545 572.482 1.13753 2005 6.32899 54.4307 567.705 1.13695 2006 6.34931 54.8542 575.006 1.13579 2007 6.36599 54.9281 573.121 1.13585 2008 6.33554 54.5481 569.512 1.13702 2009 6.25743 53.4414 554.852 1.14034 2010 6.34021 54.6312 569.806 1.13495 2011 6.32955 54.3568 565.169 1.13448 2012 6.27705 53.6866 557.085 1.13804 2013 6.29585 53.9068 560.558 1.13731 2014 6.28727 53.8815 561.656 1.1365 2015 6.30109 54.2982 570.737 1.13945