_id año valor 1 1989 6.4000000000000003552713678800500929355621337890625 2 1990 6.5999999999999996447286321199499070644378662109375 3 1991 6.20000000000000017763568394002504646778106689453125 4 1992 5.79999999999999982236431605997495353221893310546875 5 1993 7.29999999999999982236431605997495353221893310546875 6 1994 5.79999999999999982236431605997495353221893310546875 7 1995 5.9000000000000003552713678800500929355621337890625 8 1996 6.29999999999999982236431605997495353221893310546875 9 1997 7.4000000000000003552713678800500929355621337890625 10 1998 7.4000000000000003552713678800500929355621337890625 11 1999 6.5 12 2000 6.4000000000000003552713678800500929355621337890625 13 2001 6.5 14 2002 6.9000000000000003552713678800500929355621337890625 15 2003 5.9000000000000003552713678800500929355621337890625 16 2004 6 17 2005 5.5999999999999996447286321199499070644378662109375 18 2006 6 19 2007 5.79999999999999982236431605997495353221893310546875 20 2008 6.5999999999999996447286321199499070644378662109375 21 2009 6.70000000000000017763568394002504646778106689453125 22 2010 6 23 2011 5.79999999999999982236431605997495353221893310546875 24 2012 7.79999999999999982236431605997495353221893310546875 25 2013 7.5999999999999996447286321199499070644378662109375 26 2014 7.79999999999999982236431605997495353221893310546875 27 2015 8.5 28 2016 7.70000000000000017763568394002504646778106689453125 29 2017 8.0999999999999996447286321199499070644378662109375