Year % of GDP 1987 60.3345094673672 1988 59.5161232558082 1989 69.8038632577659 1990 58.8340571455211 1991 55.7330916346419 1992 45.1411282201477 1993 26.8093770604547 1994 28.2075920745909 1995 29.3073905590353 1996 28.8241325799333 1997 27.9261973255657 1998 21.8556292367127 1999 13.9165354661169 2000 17.0506562731343 2001 23.7774303144037 2002 18.6660117494038 2003 13.6465215764818 2004 25.0815325396624 2005 31.6104334488128 2006 30.4031239366484 2007 21.5472166448193 2008 48.7224896766497 2009 21.2095054194917 2010 32.8175245458718 2011 39.6578022158308 2012 24.4650892301952 2013 15.9841772281575 2014 11.3666676890308 2015 8.69712510622088 2016 9.38675264949474 2017 11.6082269487291 2018 13.9398394603711 2019 12.7633265623315 2020 11.0704275823815 2021 17.1799974804718