Year Percent of GDP 1993 31.493 1994 51.209 1995 44.939 1996 46.75 1997 50.472 1998 51.196 1999 43.928 2000 24.605 2001 30.504 2002 29.517 2003 29.459 2004 28.675 2005 26.498 2006 20.785 2007 15.692 2008 13.585 2009 14.597 2010 13.574 2011 11.897 2012 11.525 2013 11.691 2014 11.476 2015 11.233 2016 8.896 2017 6.162 2018 5.876 2019 5.18 2020 4.615 2021 4.159 2022 3.725 2023 3.435 2024 3.005