Year % of GNI 1971 22.837542988952226 1972 23.01571714278815 1973 24.20275259415639 1974 23.90710092269204 1975 22.38646844429572 1976 23.036675825006057 1977 23.17020387102499 1978 23.730110081774782 1979 23.978267161493353 1980 23.255639218647136 1981 23.058971408719227 1982 21.59321981627423 1983 20.812769485915002 1984 22.13346447673016 1985 21.254848297431153 1986 20.90164170584385 1987 21.235781578003348 1988 22.094260526396234 1989 21.949001595443647 1990 21.52660608217516 1991 20.795789843600826 1992 20.18158267131702 1993 19.819471803846806 1994 20.79071662693131 1995 21.68256410286407 1996 24.032272681650745 1997 24.216353572098974 1998 23.99240873639178 1999 23.637061951563762 2000 23.953218910186628 2001 22.82423120955961 2002 21.97557115281254 2003 21.759698462179916 2004 22.404804340520656 2005 22.75958215119947 2006 23.467155839470117 2007 23.284423843692757 2008 22.178408959626143 2009 19.760815923498225 2010 21.171066752046087 2011 22.202734140344887 2012 22.543159162767235 2013 22.4791866868368 2014 22.880280105157375 2015 22.84223002571093 2016 22.56138988933222 2017 23.204129518744125 2018 23.515563112577123 2019 23.54421562607676 2020 22.782795964874275 2021 23.850196128294584 2022 23.667987442898333