Year number of cases 2008 2020000 2009 1300 2011 52000 2012 901000 2013 188000 2014 34000 2015 63000 2016 1127000 2017 1581000 2018 1247000 2019 916000 2020 1715000 2021 573000 2022 675000 2023 202000