Year % of GNI 1990 0.924094962562049 1991 0.872995427436994 1992 1.03798192583932 1993 1.02322606286343 1994 1.11779055145824 1995 1.03797557827378 1996 1.01157485900605 1997 1.04252456789327 1998 1.28305664112699 1999 1.31212051401488 2000 1.3760315482808 2001 1.40317178541633 2002 1.7131685245009 2003 1.21206794393535 2004 1.09513872380583 2005 1.09616449516522 2006 1.07113872831031 2007 1.09063069819307 2008 1.15549925294424 2009 1.15381276654271 2010 0.79283979567864 2011 0.770732545479091 2012 0.747982977437237 2013 1.22939775875189 2014 1.55014413346961 2015 1.84132478811938 2016 1.72630761837591 2017 1.86299321355017 2018 1.86819505875173 2019 1.86883433275873 2020 2.01610346984086 2021 2.23891251018633