Year % of new cases 2000 70 2001 87 2002 80 2003 97 2004 88 2005 91 2006 88 2007 71 2008 87 2009 86 2010 89 2011 88 2012 79 2013 89 2014 84 2015 88 2016 88 2017 91 2018 84 2019 85 2020 89 2021 87