Year	number of cases
2008	35571180
2009	16293540
2010	39314450
2011	13844996
2012	26712580
2013	19742159
2014	16737512
2015	16454817
2016	21106709
2017	14382618
2018	13841683
2019	20817455
2020	24984245
2021	20164885
2022	26739876
2023	19464741