Year Percent of GDP 1998 -9.39 1999 -2.03 2000 1.442 2001 2.62 2002 6.893 2003 10.049 2004 10.998 2005 15.112 2006 18.074 2007 15.618 2008 10.306 2009 16.833 2010 24.675 2011 24.742 2012 28.385 2013 30.871 2014 27.873 2015 30.47 2016 31.535 2017 28.865 2018 31.93 2019 31.754 2020 31.698 2021 31.868 2022 31.825 2023 31.976 2024 31.937