Year % of GDP 1973 5.98692033293698 1974 6.674146341463414 1975 5.325497287522604 1976 6.025700934579439 1977 5.508625817965497 1978 6.270060396893874 1979 8.706508391322144 1980 7.057720916393931 1981 10.901837270341206 1982 13.588109730574939 1983 11.799080686975609 1984 14.469326789129063 1985 15.359899834438192 1986 12.976362805631664 1987 14.72703602318689 1988 14.942168247041558 1989 14.849552650876813 1990 15.595959522645513 1991 16.16359640945625 1992 15.594473975203163 1993 17.97905163901291 1994 22.02083783003174 1995 18.00578306603547 1996 16.13049620227099 1997 21.141585882490165 1998 16.017002820392904 1999 14.530223759876176 2000 13.545829492109792 2001 12.280867701288544 2002 12.33155812019256 2003 5.178669592654985 2004 5.088975609190439 2005 7.051004917543079 2006 7.1958908610462435 2007 9.805140602930038 2008 9.844933374437383 2009 12.423981697553387 2010 13.245831274217842 2011 14.174597036801522 2012 18.361048446390132 2013 19.724432479418873 2014 19.101281578598982 2015 18.042913769193444 2016 17.955511428805828 2017 19.669932254755622 2018 19.843776399241044 2019 21.010011689778064 2020 21.62872193149878 2021 22.06816319005321 2022 22.02594684887255 2023 25.327996568315868