Year	number of cases
2008	22358795
2009	6059010
2010	21795200
2011	7518296
2012	6750000
2013	6809420
2014	5318626
2015	4316602
2016	10415227
2017	7761787
2018	5446272
2019	5706136
2020	7575209
2021	7861395
2022	5557346
2023	11137475