Year number of cases 2008 46000 2009 80000 2010 20000 2011 19000 2012 84000 2013 284000 2014 187000 2015 8300 2016 123000 2017 54000 2018 121000 2019 272000 2020 454000 2021 99000 2022 105000 2023 58000