Year % of GNI 1990 3.0593542994226777 1991 3.098059433537881 1992 2.107870742872122 1993 1.9975447641922384 1994 1.9744774497185402 1995 1.8179235764510167 1996 1.643530318594463 1997 1.637971617792749 1998 1.6546335401891314 1999 1.600342323690833 2000 1.6521309589154445 2001 1.6136345544644886 2002 1.5887191319757397 2003 1.3934022261430632 2004 1.2693524840636525 2005 1.2293871043128903 2006 1.2147999570377468 2007 1.191474318678183 2008 1.2106340092038352 2009 1.1483644332987364 2010 1.0589891593660865 2011 1.0310672403809784 2012 1.0168768131755734 2013 1.0745276978627758 2014 1.0373823723269264 2015 1.0231946809275168 2016 0.9598140655286928 2017 0.902184917236991 2018 0.8745797275695629 2019 0.8691387675780665 2020 0.8952891433681877