Year % of GDP 1960 6.389649891641069 1961 5.323547548706071 1962 6.2111135304543525 1963 11.304226334272196 1964 5.966444007363731 1965 3.43934018404307 1966 4.209070863942033 1967 2.722991992471122 1968 3.3807055315630996 1969 -0.892744416906343 1970 2.521377584498805 1971 4.545235157891093 1972 4.788370267815558 1973 6.7170134992612125 1974 -1.647236441843389 1975 2.5670439451230505 1976 2.1355423686715107 1977 9.995446825515526 1978 17.695509850495554 1979 17.5027707782335 1980 14.573031592115699 1981 8.247717579589338 1982 5.463130879324841 1983 6.457904300897716 1984 -0.8993677982890939 1985 0.6099154067095851 1986 10.926918952169423 1987 7.275662751076261 1988 13.76473194555761 1989 6.980664297505433 1990 5.805304808891854 1991 5.790147602988739 1992 3.3578865858611104 1993 2.2509101657444504 1994 5.622127406672187 1995 6.331902379518805 1996 8.719144587956624 1997 7.531598449717944 1998 7.547079310298392 1999 5.135577447818164 2000 7.108814598982106 2001 7.690408217089793 2002 7.629233333540582 2003 7.095950495396604 2004 4.050209039220383 2005 9.810520470417197 2006 11.018010527819643 2007 9.544058376061958 2008 13.093328186977107 2009 8.915714105989052 2010 13.063305363957554 2011 11.945835658830726 2012 16.429424507113072 2013 17.375395096268907 2014 17.26020934779958 2015 16.166132421903384 2016 15.399638194320936 2017 13.044765616137571 2018 14.710614694869145 2019 15.56166971495091 2020 13.002866052938272 2021 10.617135125026897 2022 27.261983666151302 2023 28.486571260537147