Year % of GDP 1990 13.862918509159824 1991 13.637999974286119 1992 15.43261498874236 1993 15.39456662354463 1994 16.716784289659405 1995 17.346165062700496 1996 17.049044056525354 1997 10.395239689468065 1998 9.972501982959718 1999 10.323678042444758 2000 10.678687594951755 2001 9.859542693226478 2002 8.999094712852825 2003 9.288519056740123 2004 9.428334156056845 2005 10.001707976657652 2006 11.248331653101872 2007 11.358865886758194 2008 12.12136614098423 2009 11.252068731992516 2010 10.762314932704422 2011 13.011020862225623 2012 12.039257165244159 2013 11.861722323342118 2014 11.456684277981791 2015 12.88174117393055 2016 14.297469608602736 2017 15.044621429061758 2018 14.550595285277193 2019 16.8920114933698 2020 18.660611024080655 2021 14.176381593645823 2022 16.4295483313541