Year % of GDP 1990 26.408878504672895 1991 27.494054054054057 1992 32.140428976123026 1993 25.108782938353226 1994 20.48139643237487 1995 8.573499080216289 1996 7.901518421491241 1997 13.672166514044 1998 14.13978625802337 1999 12.968418677170524 2000 18.102534207905112 2001 17.640609879066368 2002 13.048451042103421 2003 13.274411778031606 2004 15.325311841883526 2005 12.85243094097872 2006 10.992081729277919 2007 9.919047313663294 2008 13.219026989992654 2009 14.228251357077152 2010 16.860288615519494 2011 18.26824868500233 2012 12.071743829461854 2013 15.768088922213327 2014 13.676196798554507 2015 14.05077569854217 2016 15.434260867228517 2017 14.990828043584278 2018 14.264463309223135 2019 13.721424211547376 2020 13.157526959211092 2021 11.806270975327083 2022 13.643060173916178 2023 12.603023129325214