Year	% of new cases
2000	73
2001	70
2002	72
2003	73
2004	70
2005	74
2006	79
2007	84
2008	81
2009	85
2010	83
2011	83
2012	82
2013	82
2014	85
2015	81
2016	82
2017	86
2018	88
2019	88
2020	90
2021	90