Year % of GNI 1980 4.241892702238877 1981 3.9070733567854634 1982 4.547695598658312 1983 4.459738921408958 1984 4.479383476648864 1985 4.469951500093516 1986 4.738909440068888 1987 4.8655986492836165 1988 5.173600933490751 1989 4.657005119378795 1990 4.195599237363392 1991 4.381040373671427 1992 3.8620824152786897 1993 3.7804132450682255 1994 3.650381200189805 1995 4.038757840579745 1996 4.387068429139276 1997 4.591386580538037 1998 4.782407631373252 1999 5.912728846924573 2000 5.6783542665909135 2001 5.32406979363813 2002 5.238888829773591 2003 5.240237649267476 2004 4.354674875056883 2005 4.323594230638993 2006 4.143701973884626 2007 3.4036773320613793 2008 3.16476789222738 2009 3.1967493999936276 2010 2.703025858455033 2011 2.4397674235984343 2012 2.5241838652200603 2013 2.6545771616828606 2014 2.946850238216355 2015 3.3084158318210433 2016 3.705281786897979 2017 3.4521834809096505 2018 3.6260332047060597 2019 3.9510464581284572 2020 3.9708249551984727 2021 3.60282747869388 2022 3.645740943141404