Year % 2010 99.6306935011527 2011 96.8569501466276 2012 101.299935219175 2013 101.330247982973 2014 100.659735181729 2015 102.169598592676 2016 101.557448364102 2017 100.891670890353 2018 102.343898231997 2019 99.2093516033338 2020 100.106179534751 2021 97.7314008282165 2022 100