Year % 2010 7.75101583270805 2011 8.32352063611978 2012 8.62027101448447 2013 8.65380992500231 2014 9.15862776417347 2015 8.60621620440827 2016 9.48063958668967 2017 9.84060734352419 2018 10.4452603966566 2019 10.9194189462035 2020 9.1199985308097 2021 9.35682085930978 2022 10.3406319690812