Year	% of new cases
2000	77
2001	78
2002	71
2003	77
2004	65
2005	70
2006	72
2007	64
2008	58
2009	76
2010	78
2011	76
2012	76
2013	73
2014	77
2015	79
2016	79
2017	78
2018	82
2019	72
2020	78
2021	76