Year % of GNI 1990 0.51139027402375 1991 0.59895150179832 1992 0.568194734451147 1993 0.575330157783269 1994 0.637217296236205 1995 0.625770117769935 1996 0.782757214396313 1997 0.841779616479977 1998 0.845162626269161 1999 0.920005472026372 2000 0.922915556049847 2001 1.02677214228239 2002 1.12047103117077 2003 1.07805390986219 2004 0.987765301765654 2005 0.951777755498151 2006 0.931492792728301 2007 1.07048957497351 2008 1.26857224508937 2009 1.56912223575451 2010 1.37311845915827 2011 1.23299742662297 2012 1.34338042955553 2013 1.08996997008738 2014 1.23080839642482 2015 1.35324010557637 2016 1.53550696217557 2017 1.51021596663073 2018 1.50139205829065 2019 1.57798098002172 2020 1.9975204090643 2021 2.00808154155671