Year	% of new cases
2000	85
2001	85
2002	78
2003	86
2005	65
2006	55
2007	80
2008	85
2009	83
2010	64
2011	91
2012	86
2013	77
2014	87
2015	86
2016	89
2017	81
2018	66
2019	30
2020	54
2021	56