Year % of GNI 1990 1.3780233385975016 1991 1.3459556084934303 1992 1.511668486753425 1993 1.637912355884186 1994 1.7905521589594484 1995 1.7126297599375442 1996 1.8377226272257385 1997 1.9336485677769872 1998 2.1756770064544617 1999 2.213554053130031 2000 2.2452624092574864 2001 2.768083590948194 2002 2.8252171558092423 2003 2.3609716381125603 2004 2.1569454724041117 2005 1.9767028265909368 2006 1.871374256570223 2007 1.7800066266044643 2008 1.5093069247882531 2009 1.5508157954689423 2010 1.4574584243251696 2011 1.3426687441068805 2012 1.3895515693685763 2013 1.4304408997603462 2014 1.4656825149538346 2015 1.6548397984446177 2016 1.8795700450071346 2017 1.856524304279496 2018 1.8306905022276154 2019 1.9158334696889987 2020 1.9943992757114926 2021 1.9873004400981975