Year Percent of GDP 1990 25.711 1991 27.795 1992 28.727 1993 32.821 1994 31.054 1995 29.381 1996 28.195 1997 30.401 1998 30.939 1999 31.843 2000 28.571 2001 31.251 2002 34.285 2003 32.202 2004 30.765 2005 27.108 2006 28.853 2007 33.236 2008 37.95 2009 42.6 2010 37.251 2011 40.123 2012 43.543 2013 36.186 2014 40.606 2015 45.811 2016 41.64 2017 39.166 2018 38.479 2019 36.419 2020 31.962 2021 29.731 2022 27.634 2023 25.29 2024 26.916