Year % of GDP 1994 11.101589282819676 1995 1.0093842550723686 1996 3.942263280636319 1997 12.114580382121733 1998 11.133136320574364 1999 34.34860676996742 2000 44.95405748228816 2001 36.817042606516296 2002 32.215822030531754 2003 33.23021607928744 2004 37.96402105408962 2005 35.42454547137102 2006 27.064541020075715 2007 24.440638010422123 2008 33.291863588372266 2009 22.12558920856438 2010 38.569075245470735 2011 46.51777959249308 2012 47.19854372613149 2013 43.05246194226536 2014 36.961861522571574 2015 20.41535135953225 2016 5.880082861875655 2017 14.28425733731458 2018 20.04527736502764 2019 14.331344304033733 2020 8.218661636605791 2021 24.67287549586028 2022 36.97359838931234