Year	number of cases
2008	3492560
2009	984920
2010	8163600
2011	1014396
2012	873000
2013	354082
2014	1550762
2015	1543360
2016	1985880
2017	2713782
2018	420344
2019	597889
2020	2950810
2021	1019937
2022	1407573
2023	1728025