Year	% of new cases
2000	78
2001	79
2002	76
2003	72
2004	52
2005	66
2006	45
2007	71
2008	75
2009	73
2010	76
2011	76
2012	78
2013	76
2014	78
2015	78
2016	80
2017	81
2018	79
2019	80
2020	78
2021	79