Year % of GNI 1990 12.7185685483053 1991 12.3326988938975 1992 10.7314518837377 1993 10.3171595031298 1994 10.1471311928958 1995 12.7262022491347 1996 12.5429256120668 1997 13.4659435914178 1998 14.0459314490728 1999 13.0334258714117 2000 12.6780280164074 2001 12.4819993971068 2002 13.2199121666462 2003 13.7985185429948 2004 12.7725507489192 2005 11.8991840309549 2006 11.4890647836575 2007 10.8727093862779 2008 9.40152091744326 2009 8.55378328462543 2010 7.47917982524733 2011 6.29758296135338 2012 6.00585539315325 2013 6.87239883430616 2014 7.14562531880281 2015 8.66593917719895 2016 9.71255757934249 2017 10.0823266582197 2018 10.3445676610036 2019 10.9838252874872 2020 6.8674863846357 2021 8.01104530787172