Year Percent of GDP 1990 22.07 1991 18.516 1992 19.667 1993 18.985 1994 15.382 1995 8.438 1996 9.072 1997 9.572 1998 12.19 1999 8.545 2000 10.711 2001 9.734 2002 13.028 2003 18.785 2004 21.12 2005 23.174 2006 35.032 2007 43.689 2008 46.644 2009 37.484 2010 21.259 2011 24.669 2012 26.364 2013 41.297 2014 34.919 2015 50.828 2016 47.521 2017 36.152 2018 33.875 2019 31.89 2020 30.465 2021 28.195 2022 26.465 2023 24.865 2024 20.785