Year % of GDP 1991 38.983050847457626 1992 67.125 1993 84.69560878243513 1994 84.9552752293578 1995 83.97292944785276 1996 74.58064516129032 1997 39.018901890189014 1998 29.72490175062522 1999 35.67688855646971 2000 55.236454145127325 2001 41.49216474830121 2002 35.41114058355438 2003 32.60668293914654 2004 29.69384990517475 2005 30.686971614131348 2006 35.11618499707852 2007 36.77777777777778 2008 57.37416616130988 2009 47.083022339483776 2010 45.90441564898543 2011 59.79715537418232 2012 58.832744616735525 2013 49.83932040138569 2014 46.78017477669214 2015 35.67546428941971 2016 22.15051385147678 2017 22.46839734221271 2018 29.899985281646213 2019 24.733600732716422 2020 17.818948261132554 2021 20.560545290413994 2022 25.945098534613443 2023 22.225066509733026