Year % of GDP 1998 6.909220024739087 1999 7.841843336245666 2000 4.0669870026548836 2001 3.811326322954589 2002 4.429484901400817 2003 4.862526139508757 2004 5.273353741498686 2005 5.1810456773046925 2006 4.94438397132272 2007 4.2295340122943665 2008 5.058350960737665 2009 8.224680466599716 2010 7.897645108374862 2011 5.991393308347607 2012 13.552174448371634 2013 13.79847604414497 2014 13.954850668582846 2015 13.122740030444913 2016 14.070777375848989 2017 13.425576163145045 2018 13.458569770620096 2019 13.929366940074708 2020 23.772891146159296 2021 23.89299664287869 2022 25.201091251237568