Year % of GNI 1993 4.254397270031018 1994 4.956828905500809 1995 4.193011087994122 1996 3.636995062728658 1997 3.1783720569000153 1998 3.2419966011883563 1999 2.975134165981249 2000 2.825894425829766 2001 3.3246887249919954 2002 4.235066192551327 2003 4.219992361877524 2004 3.6517814143030236 2005 3.8930795274611065 2006 4.3101156453704395 2007 2.845672290330507 2008 3.0041394125603817 2009 3.370661432657925 2010 3.245048316511884 2011 3.08137904999623 2012 2.9094618498579528 2013 2.7954595884396634 2014 2.5757551018550506 2015 2.7701322703184417 2016 2.9850473386092693 2017 3.1434875886405096 2018 2.9445519583415343 2019 2.983238524357307 2020 3.9808187780565074 2021 3.360186299498403 2022 2.9893313332725975