Year	% of GNI
1989	23.46304912040763
1990	17.973721661910815
1991	14.75651562979081
1992	15.371857624103228
1993	14.740856100489447
1994	13.0215631095236
1995	17.485414816568987
1996	20.350898991905968
1997	18.572136219931572
1998	18.575326037479194
1999	21.529946413927355
2000	20.219527275922825
2001	16.4798065082904
2002	18.742802226743823
2003	18.130359399210555
2004	18.12571156541522
2005	15.242116875607403
2006	17.354454399863304
2007	19.42219780352748
2008	16.612132071401785
2009	16.636233804299618
2010	13.725431805720941