Year Percent of GDP 1989 21.9 1990 27.372 1991 25.492 1992 22.459 1993 24.099 1994 23.473 1995 24.619 1996 27.853 1997 28.595 1998 22.871 1999 26.951 2000 26.666 2001 30.846 2002 27.337 2003 30.195 2004 30.369 2005 38.798 2006 44.427 2007 44.316 2008 54.802 2009 30.269 2010 41.194 2011 46.424 2012 49.096 2013 50.631 2014 48.074 2015 32.647 2016 34.055 2017 27.664 2018 30.423 2019 32.756 2020 33.975 2021 31.761 2022 33.26 2023 33.751 2024 34.158