Year % of GNI 1970 0.188674276143106 1971 0.105982132076263 1972 0.104753074438845 1973 0.220481262384509 1974 0.221198718279011 1975 0.0624591726114752 1976 0.0768331112221564 1977 0.0609645261310062 1978 0.037148494069545 1979 0.0635696875991676 1980 0.0666654443579482 1981 0.0347578805620414 1982 0.0221027560135952 1983 0.0281058526463288 1984 0.0146588194170308 1985 0.0139808670283406 1986 0.00608059302882284 1987 0.0082599470055628 1988 0.0256926632190707 1989 0.0656384457520402 1990 0.0220661986122103 1991 0.0319874085617126 1992 0.0244715433801715 1993 0.0127493224827202 1994 0.0131501812941294 1995 0.0117926115955561 1996 0.0101655906003996 1997 0.019829596566643 1998 0.0103794311009426 1999 0.0143963276701709 2000 0.0134842193056429 2001 0.000153722932458371 2002 0.007488731347294 2003 0.00919395489769107 2004 0.0198223234362503 2005 0.0275820601520484 2006 0.0665931413713072 2007 0.0646091935299974 2008 0.0231279047668591 2009 0.0202676429644484 2010 0.0758140392488928 2011 0.100148661178296 2012 0.132601307274166 2013 0.0687545815026731 2014 0.047122534839743 2015 0.0251920075077817 2016 0.0236891721385244 2017 0.0635231489904462 2018 0.0603010729645101 2019 0.0117536841833593 2020 0.00846403186911195 2021 0.0490708343572672