Year GDP 2011 0.5265096590730257 2012 0.5471439528474035 2013 0.5517781510649141 2014 0.5566686426824428 2015 0.5572575580762527 2016 0.566488250982163 2017 0.5599990868680977 2018 0.5347283407382126 2019 0.5255963005051192 2020 0.51472537598214 2021 0.5076940261119868 2022 0.49620743656465416 2023 0.5006097513437158