Year % of GDP 1995 7.281073792576612 1996 2.104283941374515 1997 13.820883849697621 1998 6.6188409812242055 1999 14.472919123970227 2000 20.03145530236748 2001 23.663106483727145 2002 22.71172853687423 2003 26.031472350996992 2004 27.54255759433542 2005 39.70422682923538 2006 45.084483929383026 2007 45.36463669310484 2008 49.94312191433383 2009 40.36763552332346 2010 44.73031564959378 2011 46.79376663779809 2012 44.27033919560607 2013 42.75954442456258 2014 40.746653042627095 2015 28.121905009525562 2016 22.600148416984965 2017 29.0257083432948 2018 32.14957552971083 2019 28.573547970409095 2020 23.56898182785165 2021 32.5315200551054 2022 42.05198775571441 2023 29.81595953026491