Year GDP 2008 0.45294361619888096 2009 0.41486805865366355 2010 0.41613769172513515 2011 0.45508383745305636 2012 0.4318615516250408 2013 0.45787528067972566 2014 0.47588641172244556 2015 0.4039771613402412 2016 0.41055264595757235 2017 0.42738978847737136 2018 0.4375986208037538 2019 0.40659014278684774 2020 0.40929393942015674 2021 0.42632665925005647 2022 0.3795684140059427 2023 0.3954346708857566