Year % of GDP 1975 6.849105940027795 1976 7.795216240390424 1977 6.948204520858396 1978 8.414781703318305 1979 8.034618291471336 1980 9.443173104417843 1981 10.3208080871578 1982 9.41741369061099 1983 15.471803891539835 1984 18.80471149007606 1985 25.287204649283073 1986 34.00112506522545 1987 48.63007079432325 1988 38.6292949041562 1989 41.36323705932063 1990 30.054521053262157 1991 23.94472573847027 1992 22.404121872550284 1993 31.37339381223766 1994 33.39636051393333 1995 36.46317055226535 1996 44.25814318863559 1997 62.47936206543242 1998 81.15679595569524 1999 113.04186650683343 2000 166.16850050730534 2001 123.10856868797994 2002 95.23790830845427 2003 86.70882163465679 2004 95.48176419972795 2005 117.78963113889766 2006 141.68180267455884 2007 190.16675401054223 2008 177.53386182942964 2009 135.4613565654077 2010 135.94162892501652 2011 138.48778066040148 2012 109.56403113871644 2013 115.19858375640374 2014 127.25645347772554 2015 156.20562379491057 2016 154.6648967280658 2017 148.50021763414523 2018 166.3768438917387 2019 118.92295224866797 2020 161.15906647830255 2021 150.1367942738068 2022 133.35435279049815