Year	number of cases
2008	24276685
2009	7349800
2010	19029800
2011	9197800
2012	10152200
2013	14932832
2014	10965826
2015	7785520
2016	15464033
2017	8514540
2018	9393630
2019	9692244
2020	11791775
2021	13634110
2022	9983078
2023	8946159