Year % of GDP 1974 17.353413347603393 1975 23.426220040427374 1976 18.258866357612128 1977 16.087820573483487 1978 14.472730567131729 1979 14.137868822883009 1980 11.6642662219527 1981 13.71348040544203 1982 17.22645334502219 1983 18.981031278080724 1989 35.207891953746376 1990 37.266886068014415 1991 40.17200938232995 1992 47.90902421129861 1993 51.763641845040695 1994 48.406214960756046 1995 55.827123695976155 1996 60.64051018993484 1997 58.49423351043151 1998 57.40412979351033 1999 48.40323201231243 2000 35.817293549423404 2001 39.19356474841148 2002 41.62613878795421 2003 35.96921573149848 2004 31.790523717986336 2005 27.289169462592216 2006 25.216451404053597 2007 27.897716499173825 2008 27.614607386054445 2009 35.78946019870222 2010 27.961476725521667 2011 30.030468180062652 2012 35.47975531883545 2013 42.89500419629842 2014 34.24388836573792 2015 37.68319271009112 2016 37.74136080772161 2017 35.603507347277535 2018 41.9647314037168 2019 50.56361781985063 2020 52.93489224246415 2021 66.95420156686409 2022 60.58460899591258 2023 60.028173722620394