Year % of GDP 1983 3.360124212256827 1984 3.3631720022252565 1985 4.34081055607917 1986 3.8573131278733177 1987 3.99891995216931 1988 3.716280095802345 1989 6.506619158957233 1990 3.9376692481371456 1991 3.381299036437688 1992 3.712536146221499 1993 3.956404556504098 1994 4.0554692355500315 1995 4.2806360070030145 1996 4.526610334461442 1997 4.62371249650554 1998 4.721180705829186 1999 4.764832308207278 2000 4.953989559118973 2001 4.84780538283328 2002 8.477262125535862 2003 7.818917344733239 2004 7.094094993104121 2005 7.021814422283673 2006 7.131571619993549 2007 7.328945763385429 2008 6.934055005559002 2009 6.93180305694933 2010 6.476888402455412 2011 6.063559012533664 2012 5.9693183578013365 2013 5.921596186208565 2014 5.972422726664346 2015 5.421119484119491 2016 6.331663232009609 2017 6.324743119030386 2018 7.549179198131248 2019 7.693501885564999 2020 5.5788172383685195 2021 4.632097347472354 2022 5.685401249178952 2023 6.1386180375301995