Year % 2010 1.86763486280352 2011 1.83888954526963 2012 2.16669888688339 2013 2.52532864724647 2014 2.86635234019297 2015 2.82627141447332 2016 3.03691673128785 2017 3.26099813127162 2018 3.27104963481759 2019 3.36599445858728 2020 4.12760856551142 2021 3.90874696659241 2022 4.1165128325684