Year % of GDP 1993 1.9595939086294416 1994 3.014292137357388 1995 5.3670518850440265 1996 8.42930790923639 1997 9.083841561486246 1998 9.129937578418625 1999 9.858922679758262 2000 12.283323917756027 2001 15.807595555866119 2002 15.121034451360648 2003 14.451813347809917 2004 12.801639968954909 2005 11.530252932741739 2006 11.86248725951531 2007 12.506042976247691 2008 12.156780141581685 2009 11.763175588512457 2010 13.732025978818035 2011 14.614721226382855 2012 15.87920926443624 2013 17.013657234319655 2014 17.399837492398763 2015 19.670041280502726 2016 23.60532924401521 2017 23.264193118356847 2018 23.72783854872466 2019 24.05538029592079 2020 22.216408716880064 2021 22.948098902615857 2022 19.33396410220514 2023 19.732248377007465