Year % of GDP 1990 29.80900409276944 1991 29.809131736526943 1992 18.441526109416817 1993 4.168152866242038 1994 -1.0854550306912196 1995 2.858749648514387 1996 0.30008050940496234 1997 12.921508406421175 1998 4.839272219961634 1999 8.611692405499193 2000 20.43831203238592 2001 24.857024606817667 2002 24.69443298969072 2003 27.64849926537466 2004 31.287660312771102 2005 47.456977440606906 2006 54.35714971567571 2007 56.93834734930625 2008 58.06932222476904 2009 46.11996685532913 2010 49.75603438125515 2011 52.61376291233055 2012 50.00301404545181 2013 47.8137568320099 2014 43.67651120664383 2015 30.901618242000733 2016 28.459483791530687 2017 31.07219731069212 2018 35.392923138390856 2019 31.369831567276623 2020 22.8951984138466 2021 33.76922680766326 2022 44.995137068970024 2023 32.775688891960115