Year % of GNI 1982 27.60823726381023 1983 29.75808819136515 1984 30.386378244069835 1985 30.60407749802913 1986 30.361165960638026 1987 32.52958647554456 1988 33.50175222296015 1989 32.896994189063655 1990 32.53219019548622 1991 33.52211390121472 1992 34.999251279072844 1993 36.8036332487915 1994 37.275809261881506 1995 36.20764349165723 1996 35.60329522537597 1997 36.45799550920763 1998 36.46268852712355 1999 34.26405616330338 2000 34.754099351105374 2001 35.74897587678047 2002 36.41230070285599 2003 38.71700990464288 2004 41.31012989142276 2005 42.267399720298506 2006 44.087056387523965 2007 45.712847372727055 2008 47.15914792926044 2009 46.287795357118284 2010 47.384569140147285 2011 46.298050045162334 2012 45.45188432329664 2013 44.67110725828433 2014 44.70071668313955 2015 43.10077330343667 2016 42.18136086904602 2017 42.699439542599826 2018 42.56310208713355 2019 41.72521966884115 2020 41.88106215034018 2021 43.19984989256373