Year % 2009 1.875 2010 7.352 2011 7.093 2012 1.194 2013 3.573 2014 4.515 2015 11.196 2016 11.723 2017 20.46 2018 21.733 2019 19.818 2020 18.678 2021 19.885 2022 19.182