Year % of GNI 1995 9.63963179990266 1996 9.81072302262043 1997 10.879749209546 1998 11.0285377350276 1999 10.873116550634 2000 9.544547614618 2001 10.3876178761913 2002 10.7667827366593 2003 10.6271519977746 2004 10.9771702367422 2005 11.6199949553996 2006 13.8252141646668 2007 14.7568559757182 2008 13.3972553412535 2009 7.15211212671378 2010 6.09339351290033 2011 5.61684760179441 2012 3.36830701014105 2013 4.38955212915472 2014 7.24504337694372 2015 5.85117552972233 2016 6.3873578028351 2017 10.426744063482 2018 12.040302975863 2019 11.8035882150751 2020 11.5973096460067 2021 11.2158459897344