Year	number of cases
2008	13212385
2009	10234530
2010	17519250
2011	6326700
2012	19962580
2013	12932739
2014	11418886
2015	12138215
2016	10691482
2017	6620831
2018	8395411
2019	15111319
2020	17409036
2021	12303490
2022	21182530
2023	8327266