1982 7.970 17.130 6.663 1983 7.984 17.136 5.778 1984 9.609 17.141 6.169 1985 4.540 17.132 6.871 1986 5.220 17.150 6.585 1987 4.663 17.125 6.065 1988 8.130 17.143 5.830 1989 7.591 17.141 6.351 1990 7.317 17.139 5.986 1991 8.427 17.143 6.976 1992 6.604 17.143 6.663 1993 4.398 17.152 6.065 1994 10.144 17.152 6.247 1995 9.144 17.148 6.143 1996 8.737 17.150 6.169 1997 9.842 17.139 6.403 1998 5.499 17.148 6.351 1999 9.395 17.161 6.351 2000 6.289 17.143 5.726 2001 9.135 17.164 7.002 2002 10.391 17.173 6.689 2003 10.212 17.141 5.752 2004 10.048 17.161 6.585 2005 9.847 17.134 6.819 2006 11.235 17.143 6.273 2007 9.646 17.170 6.481 2008 10.902 17.155 6.143 2009 11.089 17.155 6.429 2010 11.149 17.152 6.143 2011 10.500 17.150 5.986 2012 10.907 17.157 7.158 2013 10.253 17.139 6.221 2014 12.902 17.143 6.611 2015 10.546 17.148 7.002 2016 11.802 17.157 5.830 2017 7.330 17.148 7.028