Year % of GDP 1975 10.600318895176601 1976 7.312135769499399 1977 7.578541633114458 1978 8.19327244822138 1979 10.214830730856603 1980 10.731877591808153 1981 11.210576831037393 1982 9.81980360865641 1983 10.0291285037877 1984 11.498181706748484 1985 11.799251187695447 1986 10.349357246521429 1987 11.043435856122874 1988 10.80176854172193 1989 10.923641873169927 1990 11.561445498833448 1991 10.8150753798093 1992 9.507305495689234 1993 13.123228887059565 1994 12.460179275560417 1995 12.711662458956784 1996 11.980326735256167 1997 12.105727870619742 1998 12.968724551759047 1999 12.473110422201936 2000 13.272845868953754 2001 12.799980445473933 2002 12.502592364742545 2003 12.0629916249705 2004 12.492469223923194 2005 12.46109618500405 2006 14.3177134182142 2007 15.533358873679587 2008 15.933645711103974 2009 15.25743181499509 2010 15.884441423810811 2011 17.44098525425006 2012 18.09699960810233 2013 19.295378669825325 2014 20.246661119274194 2015 20.89478777897929 2016 21.426539535770743 2017 23.318214878334896 2018 23.985028113309344 2019 24.94008608544202 2020 17.957762021732545 2021 20.447562920486178 2022 27.681382252319974 2023 28.41134586234992