Year % of GNI 1993 7.07625936897555 1994 4.53675112852107 1995 8.00351652977664 1996 1.8555897159911 1997 14.4748350343118 1998 -8.35112715825484 1999 2.92432837205286 2000 15.5999003173023 2001 17.8622555569961 2002 17.5238794650614 2003 10.3911807552386 2004 16.1519233185723 2005 15.2459347879053 2006 11.1184432202556 2007 21.1479801001768 2008 15.2490904751451 2009 26.1691148870035 2010 21.288108577795 2011 19.4761873435247 2012 13.0760182610168 2013 9.6748298338083 2014 12.0240599490218 2015 12.667737184056 2016 23.69965429698 2017 28.0214817536887 2018 27.4112467015551 2019 26.3675368939182 2020 32.1802535401764 2021 21.9175969672539