Year Percent of GDP 1995 11.901 1996 11.842 1997 12.228 1998 10.917 1999 11.441 2000 12.136 2001 10.965 2002 12.587 2003 13.745 2004 10.373 2005 11.442 2006 16.152 2007 19.586 2008 22.409 2009 14.935 2010 20.203 2011 24.759 2012 24.352 2013 20.74 2014 17.796 2015 13.96 2016 12.56 2017 15.075 2018 15.953 2019 14.709 2020 15.776 2021 15.471 2022 15.695 2023 16.395 2024 16.649