Year	number of cases
2008	19944300
2009	5219550
2010	22958500
2011	7436600
2012	6351180
2013	7561720
2014	5337102
2015	4884440
2016	8406228
2017	5616159
2018	4610413
2019	4773086
2020	6926434
2021	7628827
2022	5243283
2023	6332866