Year	number of cases
2008	24278485
2009	7382300
2010	19119550
2011	10107600
2012	10482800
2013	15612742
2014	11683477
2015	8304660
2016	16384753
2017	8602104
2018	9599768
2019	10003694
2020	12059683
2021	13723847
2022	10086154
2023	9038561