Year Percent of GDP 1995 11.973 1996 11.519 1997 9.938 1998 8.521 1999 10.728 2000 12.605 2001 8.314 2002 9.333 2003 6.48 2004 11.802 2005 10.985 2006 9.903 2007 9.737 2008 7.574 2009 7.21 2010 6.67 2011 6.047 2012 5.633 2013 5.417 2014 5.16 2015 5.124 2016 5.056 2017 4.946 2018 5.17 2019 5.03 2020 5.042 2021 4.852 2022 4.82 2023 4.796 2024 4.894