Year % of GDP 1976 3.71434998512268 1977 3.94429993629456 1978 5.7965202331543 1979 6.36428022384644 1980 5.29720020294189 1981 6.58382987976074 1982 6.75364017486572 1987 5.80219984054565 1988 5.51155996322632 1989 5.66129016876221 1990 5.48457002639771 1994 5.14028978347778 1995 5.6531400680542 1996 4.93815994262695 1999 5.09095001220703 2000 5.50848007202148 2001 4.83824014663696 2002 4.44086980819702 2003 5.81677007675171 2004 5.40160989761353 2005 6.48462009429932 2006 6.55475997924805 2008 6.61812019348145 2009 6.47135019302368 2010 6.11837005615234 2011 6.86432981491089 2012 5.59299993515015 2013 5.08500003814697 2014 7.07059001922607 2015 5.35500001907349 2016 5.43400001525879 2017 6.17799997329712 2018 5.73699998855591 2019 5.69899988174438 2020 5.3600001335144 2021 5.28700017929077 2022 5.69299983978271 2023 6.31300020217896