Year % of GNI 1990 -0.23437598283946093 1991 1.6531634924263456 1992 3.536713279582548 1993 5.551418621773587 1994 8.164954249192972 1995 7.346979859067677 1996 8.942672863902791 1997 9.137058426364051 1998 9.103979836555467 1999 8.792674560892213 2000 8.79673543846739 2001 8.687345158624503 2002 9.503919760585136 2003 10.540708023158045 2004 12.008287344458637 2005 12.522670392058131 2006 14.156355437037677 2007 15.464900611806222 2008 15.083925750713618 2009 14.581768047442822 2010 15.41994782308375 2011 13.950955597716538 2012 13.92762963925514 2013 13.028564614767712 2014 12.964410128758582 2015 13.550148766364812 2016 12.990115253500695 2017 13.500015341532833 2018 12.836904723696305 2019 11.993757630966561 2020 11.701653810398458 2021 12.302503778118151