Year Percentage Compliance
2002 98.1
2003 98.8
2004 98
2005 99.4
2006 99.6
2007 99.7
2008 99.7
2009 99.9
2010 99.8
2011 99.8
2012 99.9
2013 99.9
2014 99.9
2015 99.9
2016 99.9
2017 99.8