<?php
return array(
1991 => 3.2,
1992 => 2.4,
1993 => 2.1,
1994 => 1.7,
1995 => 1.7,
1996 => 2,
1997 => 1.2,
1998 => 0.7,
1999 => 0.5,
2000 => 1.7,
2001 => 1.7,
2002 => 1.9,
2003 => 2.1,
2004 => 2.1,
2005 => 1.8,
2006 => 1.6,
2007 => 1.5,
2008 => 2.8,
2009 => 0.1,
2010 => 1.5,
2011 => 2.1,
2012 => 2,
2013 => 0.9,
2014 => 0.5,
2015 => 0.6,
);
