Year % of GNI 1998 -21.6420909361204 1999 -20.6363421408022 2000 -26.6774644341971 2001 -15.2412835504164 2002 -5.02005346437978 2003 0.318128954111854 2004 2.27838805232144 2005 9.56037816343284 2006 13.0176721159267 2007 15.9507338043278 2008 18.0559263056053 2009 16.5235245939301 2010 22.3964684898522 2011 22.6783613207036 2012 22.3066026451762 2013 21.6518253787717 2014 21.8345966333245 2015 13.4634298517786 2016 6.67088501861875 2017 10.3139622784083 2018 8.93200106993142 2019 7.92622921867327 2020 7.99326933010466 2021 9.27985529975589