Year % of GDP 1991 26.822156922100724 1992 24.064781290064165 1993 23.58894907283458 1994 23.678043332251885 1995 23.993976313661726 1996 24.383202228802226 1997 24.867244349967237 1998 27.79153250126311 1999 23.51119870708443 2000 23.246639620302524 2005 38.415487681416316 2006 36.358998501726504 2007 37.07565877778644 2008 39.10705311640293 2009 34.962642918130385 2010 37.66575344466002 2011 37.9997781375209 2012 38.60313377651275 2013 37.54587507219154 2014 36.5275724349845 2015 36.016703560679595 2016 34.00386083446672 2017 35.02073207345077 2018 44.03549410098495 2019 42.713753372757466 2020 35.15013824292175 2021 38.534807035865896 2022 46.13414366148087