Year % of GNI 1970 1.3050973265273 1971 0.931457211543417 1972 0.849783318623175 1973 1.15897308266586 1974 1.24965139805862 1975 0.676594827794462 1976 1.14527005437928 1977 1.06876873257466 1978 0.58422946346779 1979 1.23364307819567 1980 1.33185811103796 1981 0.681027541923497 1982 0.390035022945227 1983 0.542662664515402 1984 0.526515786530163 1985 0.558914622178008 1986 0.332816553886683 1987 0.509834741425089 1988 1.8751313647901 1989 1.53471549448914 1990 0.756643770500199 1991 1.27038995386612 1992 1.06238722230322 1993 0.658353823064203 1994 2.14164687087576 1995 1.45279524663685 1996 1.39742393673835 1997 1.1230355301397 1998 1.02241641194886 1999 0.755891698705414 2000 0.87825873705865 2001 0.54788977509562 2002 1.7271897266389 2003 1.19622957521769 2004 2.2885238926794 2005 1.94723948080003 2006 5.77572294527498 2007 8.49530018089691 2008 4.74798352852866 2009 0.7083436002479 2010 1.84116722279553 2011 2.59310080874465 2012 1.67899822412022 2013 1.27895740825633 2014 1.29291909141171 2015 0.699233141786751 2016 0.783755371916675 2017 1.47120277690345 2018 1.33265411577414 2019 1.95326225558 2020 1.71411755801844 2021 3.07423625085491