Year	number of cases
2008	3442535
2009	2252320
2010	3418150
2011	1143300
2012	2757320
2013	2753220
2014	1488080
2015	5837935
2016	2507220
2017	4080117
2018	2507763
2019	7688159
2020	8575231
2021	3134440
2022	6560751
2023	8599540