Year % of GNI 1990 1.3043624042225657 1991 1.7889053071380252 1992 1.9051547819046823 1993 2.5218076001854697 1994 2.6986824388929054 1995 2.488630075501258 1996 2.36720119788468 1997 2.468943378620585 1998 2.6017953763662613 1999 2.614165868104473 2000 2.4433856019365443 2001 2.6964388416032135 2002 2.9475201853506388 2003 2.8698676640863643 2004 2.6867221414360136 2005 2.5112843927210067 2006 2.359468590814347 2007 2.180068653704594 2008 1.9389755683719252 2009 2.320279785865639 2010 2.148338015159465 2011 1.9444502117332216 2012 1.9756192235344556 2013 2.129327328505096 2014 2.269223238771678 2015 2.698716867699677 2016 2.786181993882737 2017 2.8425115727713948 2018 2.8252717122600113 2019 3.0077433091031005 2020 3.3694398389028355