Year % of new cases 2000 61 2002 58 2003 67 2004 77 2005 74 2006 77 2007 80 2008 82 2009 79 2010 82 2011 84 2012 84 2013 85 2014 86 2015 87 2016 86 2017 86 2018 86 2019 87 2020 89 2021 87