Year % of GDP 1994 32.95039546360755 1995 32.90102671479323 1996 28.478909218585276 1997 27.37125755796601 1998 24.617763566122825 1999 25.03721939992105 2000 23.923860830771183 2001 25.10969909869496 2002 27.133678330869778 2003 25.683964030842677 2004 33.53998225107194 2005 30.610712314381267 2006 32.59295868718877 2007 33.59119320501334 2008 28.91935970525661 2009 29.250997669334843 2010 37.02593330721237 2011 40.471222673292075 2012 40.08291099435263 2013 40.48271669386973 2014 38.82228993193777 2015 37.138525801473435 2016 35.324675748965745 2017 34.992857763591765 2018 37.957404548039364 2019 34.63619260318805 2020 46.72018646753535 2021 52.216090018319164 2022 40.19399771143057 2023 40.77522435823111