Year	number of cases
2008	12860680
2009	10387690
2010	17575400
2011	6168500
2012	16228900
2013	12017422
2014	12308988
2015	12602772
2016	12035751
2017	7370544
2018	8614547
2019	16152307
2020	17536263
2021	12652230
2022	19578975
2023	13616558