Year % 2010 9.91927521923457 2011 7.6476971168983 2012 7.37392810431258 2013 9.77718144818641 2014 11.7377638896695 2015 18.7389146675744 2016 22.8981376220409 2017 27.8685587023116 2018 31.0134622051853 2019 26.0697224651368 2020 27.7006216880783 2021 26.0716487994699 2022 27.7035489488032