Year % of GDP 1980 19.5416106844043 1981 10.426247111977 1982 4.09463309036246 1983 11.21929927694 1984 14.0994665560488 1985 14.1586246957292 1986 6.31853106919339 1987 15.1707819484774 1988 14.4045947596654 1989 21.882605469383 1990 28.0268256543238 1991 16.8761491015161 1992 27.0256548842449 1993 34.5185265508012 1994 40.5755094827092 1995 41.0188156720936 1996 39.0741439653244 1997 37.3490232506807 1998 21.7476800076135 1999 38.5242698405316 2000 57.5134839616206 2001 42.5915766791073 2002 31.7610292464785 2003 27.1162657537214 2004 32.9626955078503 2005 42.2206783158613 2006 40.2786520912475 2007 45.3976036521592 2008 52.1013581243545 2009 29.7782995191992 2010 37.7085091832735 2011 38.6184358197859 2012 34.3328389540912 2013 29.0014846107501 2014 21.736607448329 2015 12.7187303090272 2016 19.7483988340046 2017 24.7110060055382 2018 30.7304027285905 2019 27.504828641196 2020 18.5719595053837 2021 28.2744398825844