Year	% of GNI
1991	14.364864788396183
1992	14.994119568805298
1993	14.364069760385146
1994	12.656209260150181
1995	17.148806751565076
1996	20.037630459350687
1997	18.27388871571723
1998	18.28157691654035
1999	21.263500099478986
2000	19.967491121163903
2001	16.238631867311458
2002	18.511255057621433
2003	17.89905181770843
2004	17.902510368093413
2005	15.025814516138777
2006	17.11072700918899
2007	19.183718206317895
2008	16.371503633817063
2009	16.38932179820161
2010	13.47770849349615