Year % of GDP 1993 11.505678584040659 1994 15.295633191621578 1995 10.295838601800993 1996 11.307030833744111 1997 12.288475393405164 1998 10.802582246894387 1999 13.019229246879831 2000 31.938377425689943 2001 15.994007345249496 2002 14.74873761876454 2003 22.229312011229872 2004 37.019056734413375 2005 52.40673711464795 2006 58.2956952400248 2007 50.17781450857951 2008 38.450918249115695 2009 37.76182058470925 2010 31.90856900178671 2011 23.283832412837768 2012 23.74789000197169 2013 22.065739763043577 2014 25.603921459687 2015 25.220817442240385 2016 24.491065155382362 2017 27.19806039677391 2018 26.571745998181942 2019 25.865238193770082 2020 43.68847561919749 2021 41.63404825688459 2022 34.212461165311666