Year	number of cases
2009	1017920
2010	1725450
2011	441800
2012	5943520
2013	1442698
2014	583590
2015	1083635
2016	712260
2017	2090234
2018	2694263
2019	2940648
2020	3782800
2021	2348100
2022	6745540
2023	5724100