Year % of GNI 1970 9.179705299367084 1971 8.790855934557696 1972 8.796699420527778 1973 5.037288794822244 1974 4.243455468817344 1975 5.614160720022929 1976 5.660381906300922 1977 6.8511129243917095 1978 7.652210999900229 1979 10.545841396558087 1980 10.354958731904272 1981 11.649578897845227 1982 17.56342466884368 1983 16.725586762444692 1984 20.739477453282635 1985 34.94278758127573 1986 33.62766029099673 1987 34.99979046086276 1988 35.438629574802476 1989 40.26015575258682 1990 41.324752300554366 1991 41.43881830963748 1992 40.79989597395578 1993 46.45116481609312 1994 51.55734548704728 1995 51.10410394791693 1996 55.35980464028994 1997 50.91683983089874 1998 57.73207896030988 1999 57.499621517732855 2000 68.08247040932667 2001 57.30167316710898 2002 63.436920582266495 2003 42.64760373288966 2004 37.312148384875414 2005 30.51634058548882 2006 29.30578484681014 2007 29.237022195325068 2008 29.259384908673177 2009 33.42801678541586 2010 27.43846128618111 2011 26.338518503051766 2012 31.259363438050848 2013 34.021930041793944 2014 33.53711649784436 2015 36.095158402676404 2016 56.5717759737007 2017 57.410619523264785 2018 48.09453656844831 2019 56.073471744310346 2020 70.93812688248737 2021 66.83761308579068 2022 67.11714256314707