Year % of GDP 2000 0.6323858071119984 2001 0.6430669137036428 2002 0.7212720458735596 2003 0.7577634442465951 2004 0.7905111638916479 2005 0.8569702109006676 2006 0.8869999070445532 2007 0.9449059256258117 2008 0.994077417448921 2009 1.0967796795662315 2010 1.1969213742058171 2011 1.237212829210884 2012 1.3242702986377777 2013 1.3297485410080538 2014 1.4651388415983344 2015 1.537690257767334 2016 1.5437730667053031 2017 1.5128624268001893 2018 1.5885141076275837 2019 1.6660317654976224 2020 1.8253812011999568 2021 2.0648280627618423