Annual % 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