Year number of cases 2008 63000 2009 9100 2010 3000000 2011 149000 2012 71000 2013 11000 2014 20000 2015 4600 2016 31000 2017 25000 2018 67000 2019 36000 2020 64000 2021 32000 2022 281000 2023 351000