Year % of new cases 2000 72 2001 76 2002 80 2003 82 2004 82 2005 80 2006 83 2007 84 2008 85 2009 88 2010 87 2011 89 2012 88 2013 90 2014 86 2015 87 2016 89 2017 89 2018 88 2019 85 2020 88 2021 89