Year % of GNI 1990 -3.26719094369355 1991 -8.08519783030867 1992 1.58376298668678 1993 0.163549251837762 1994 -0.144719945724974 1995 3.12229762065642 1996 2.95099583156889 1997 4.73220417333842 1998 2.19282457168405 1999 11.4455301537567 2000 13.03254990419 2001 12.2600814726807 2002 15.3098451172814 2003 17.9275188434112 2004 22.4053390136468 2005 28.8518997461518 2006 28.9531283619391 2007 30.130315802632 2008 31.7601337960926 2009 21.2323749699377 2010 28.2551728742033 2011 31.9874673875922 2012 30.081904722802 2013 25.5445487659317 2014 20.4373982403789 2015 7.98811700579369 2016 11.8718979030873 2017 15.5116694692178 2018 20.9535221316504 2019 20.296224834079 2020 11.2234177730298