Year PPG and IMF only, % of exports of goods, services and primary income 1975 9.49784807590071 1976 7.75058868445603 1977 8.98547654042903 1978 13.053642292093 1979 16.7113041442523 1980 17.0237216914455 1981 16.99571302291 1982 19.2382769506824 1983 19.6457478265916 1984 19.6624345973658 1985 22.3377951473763 1986 27.431385730814 1987 24.4387139403142 1988 26.2267351724478 1989 22.3250933927774 1990 20.1632679395496 1991 19.0403317213943 1992 17.4440213445806 1993 15.8255541890656 1994 13.4682075556192 1995 14.848529965794 1996 15.1781349968284 1997 15.3404922912883 1998 14.1070375898541 1999 15.2938049314319 2000 13.6974133811453 2001 13.2388109622613 2002 13.0491719118125 2003 11.8166765713781 2004 8.35738410613825 2005 8.46291717738499 2006 7.48687461162729 2007 4.34902605070681 2008 3.96960229437469 2009 4.09083868963845 2010 3.62412888307872 2011 3.01562300436505 2012 2.97598224512027 2013 3.30814016138458 2014 3.78620110431148 2015 4.70286897946376 2016 4.71096146813035 2017 4.38519974037007 2018 4.79214914283006