Year % of new cases 2000 89 2001 86 2002 82 2003 83 2004 92 2005 92 2006 89 2007 91 2008 91 2009 89 2010 92 2011 90 2012 88 2013 82 2014 86 2015 80 2016 82 2017 82 2018 83 2019 85 2020 84 2021 82