Year % of GNI 1970 0.766761358854139 1971 0.9333076085243652 1972 0.8848378356892175 1973 1.3769040458485515 1974 5.342679624787689 1975 3.758042202669835 1976 3.6786569289243176 1977 2.8597947763929095 1978 2.7023521682554312 1979 6.364270600513997 1980 6.072272008777544 1981 4.558507198835375 1982 3.2764574546213305 1983 4.183682737906058 1984 4.744596386718837 1985 3.9694311564744824 1986 1.8694428176180222 1987 2.8856202845372123 1988 1.9626844985308096 1989 1.950614403227723 1990 2.60383634755811 1991 1.4016955426084048 1992 1.3652496566168155 1993 1.1684137003559039 1994 1.0039370186380232 1995 1.118012138091719 1996 1.423579322898641 1997 1.1421420530626625 1998 0.6263706682806973 1999 1.2572739256183094 2000 2.092877586015207 2001 1.6472536375975682 2002 1.937378025422489 2003 2.2166244498362713 2004 2.644733579819186 2005 3.4219726653682363 2006 3.5131636083526794 2007 2.998343776560583 2008 3.3264679970298183 2009 1.7774827720526425 2010 1.9474042761159058 2011 2.8100213431779895 2012 2.6634279194107084 2013 2.3901941137948826 2014 2.1550650151235216 2015 1.0353181609902828 2016 0.7821405559473494 2017 1.0152619525453608 2018 1.6463944739029508 2019 1.405697468885644 2020 0.8074428928195279 2021 1.8264524605434165