Year % of GNI 1982 26.829085532432128 1983 26.936821838287756 1984 26.739366976480653 1985 29.20664458611213 1986 26.60398700856699 1987 26.41700870366344 1988 27.97899307861167 1989 27.952056292825528 1990 24.084467892652047 1991 23.67560879520101 1992 23.826034939266982 1993 25.201865162590533 1994 25.782679015690647 1995 24.998032984444333 1996 25.312414326941386 1997 25.104306939097476 1998 24.857942250832874 1999 24.787918456038803 2000 25.22194069253955 2001 25.75191881652497 2002 27.606281950799552 2003 28.99503318376605 2004 30.76272580994403 2005 31.452947864754943 2006 33.38767765124879 2007 34.423129390901906 2008 35.790504238666784 2009 34.98347183567927 2010 35.72263968518992 2011 35.595448193476955 2012 35.62005287507403 2013 35.22703799778705 2014 35.570660646362924 2015 35.38729833464605 2016 34.97489893236409 2017 35.416549780299604 2018 36.180042951640615 2019 35.64064180708822 2020 36.59371937508214 2021 38.77552183881213 2022 38.62476350576218