Year	% of GNI
1977	33.3839708253731
1978	35.6945766073093
1979	38.6454111705005
1980	41.1925559359675
1981	38.6289659211306
1982	37.1728021650816
1983	37.9172757137291
1984	31.6059313572361
1985	30.2039299549854
1986	22.3747090768628
1987	21.9720059491385
1988	17.7255735050092
1989	18.1598620058967
1990	24.887342853262
1991	34.1631555222283
2005	54.5484352111705
2006	56.7667119985915
2007	57.7266753762172
2008	57.8656017003807
2009	47.6940668528447
2010	49.9672854180098
2011	49.0280054233191
2012	48.3918493760611
2013	46.4770826652906
2014	44.3224182791101
2015	37.4611358992195
2016	37.7513605231004
2017	39.3126580455441
2018	41.1870471509403
2019	38.5597350523564
2020	31.3322721787434
2021	37.3520504128709