Year % of GDP 1981 8.292360329431096 1982 8.60031771478435 1983 7.7780868557103755 1984 6.750110491306425 1985 7.400896818346422 1986 7.739335509402541 1987 8.110688942803936 1988 8.720974586358828 1989 9.128935309815548 1990 9.614217268590188 1991 9.534844038250405 1992 9.248951547688481 1993 9.62673761442032 1994 10.30192490664162 1995 10.8885513638183 1996 11.408789683339805 1997 12.612562838121846 1998 12.871447826447024 1999 11.84150853104915 2000 11.062685132412591 2001 10.741746229028589 2002 10.270035292132748 2003 9.931213304927605 2004 9.140924359310048 2005 8.865185551374113 2006 9.066895833707605 2007 9.2315823420547 2008 8.814432850086082 2009 9.826598577845267 2010 9.720395177480428 2011 9.713632179886767 2012 10.792147108429113 2013 10.816955018730306 2014 10.561172681932746 2015 10.911641661922234 2016 11.257967604619209 2017 11.323366305792192 2018 12.042783652015764 2019 12.467754430162065 2020 15.261454587348467 2021 15.579194708389727 2022 15.043674220340767 2023 14.249178130410204