Year % of GDP 1990 9.131265077524398 1991 8.159387531499535 1992 9.622357563089004 1993 8.626651412578212 1994 7.942995557883716 1995 7.562050348761194 1996 7.996350284244498 1997 8.267349956637124 1998 9.413257110195797 1999 10.51820437696254 2000 10.939995514849462 2001 13.399160607535437 2002 12.981609489219851 2003 14.57289227813485 2004 12.87859126409032 2005 13.039383077498648 2006 13.224649770762786 2007 12.659665101828224 2008 11.874195141480394 2009 12.621655734998797 2010 12.8578109221043 2011 12.745311128776152 2012 13.17140047504956 2013 13.033096218591384 2014 13.283611032795303 2015 12.735810767948456 2016 12.796065262577146 2017 12.893525522102145 2018 12.982450839186871 2019 13.126948875591301 2020 14.99884120368761 2021 13.337765765510746 2022 14.087238042863333