Year	% of new cases
2000	100
2001	50
2002	25
2003	89
2004	69
2005	69
2006	81
2007	86
2008	95
2009	50
2010	89
2011	57
2012	64
2013	100
2016	67
2017	91
2018	100
2019	67
2020	75
2021	25