Year % of GDP 1990 24.636091291052384 1991 25.510749439364034 1992 23.979796982244764 1993 22.838869816740566 1994 24.3020010913788 1995 25.95077361734245 1996 24.97617584569238 1997 22.831673915387658 1998 21.764837630379986 1999 21.21933554739173 2000 22.988686710622154 2001 23.813377594681818 2002 22.906974906519753 2003 20.477835550473316 2004 20.711091852512936 2005 20.19596523457853 2006 21.147726189990063 2007 20.046704267038645 2008 19.2117908296268 2009 20.958419686252725 2010 16.30084874413413 2011 15.578503623202442 2012 15.06835711251455 2013 14.15671953418556 2014 14.203291822584116 2015 17.088055654811356 2016 15.660813352717321 2017 15.330882507995911 2018 15.28479492695373 2019 15.934064513685334 2020 19.06917132631555 2021 17.467067784590913 2022 15.742475064280988