Year % of GNI 1990 23.5359223476817 1991 24.550668145646 1992 25.2905873931918 1993 22.9358107673897 1994 19.5647525362423 1995 17.9044333898968 1996 17.6998443189337 1997 17.7053963372995 1998 17.3938598805388 1999 16.2063817423596 2000 17.7746609279572 2001 19.4272143477832 2002 19.1891034776887 2003 18.3193642166011 2004 16.2444205928015 2005 10.6354872921982 2006 12.8466703860832 2007 16.7737303628939 2008 9.71250312331648 2009 3.71063726103477 2010 2.90027646647067 2011 0.707574455396631 2012 -0.691681486186317 2013 -0.931270954270767 2014 -1.07286642693667 2015 0.216490296291828 2016 1.05036958080344 2017 3.33213284866137 2018 2.7332185339878 2019 2.54495409112765 2020 -3.27308386317655 2021 0.00364157423466173