Year	% of GNI
1975	19.64056885211551
1976	20.678165132010776
1977	21.047433786910986
1978	22.878941687881916
1979	22.794013313226994
1980	25.463250971536112
1981	25.041089688459174
1982	18.918394285541495
1983	14.63894614636932
1984	15.792107718405083
1985	17.114495695375805
1986	19.803090026696157
1987	16.10651956067092
1988	27.38749963814453
1989	35.93830239592341
1990	26.13468713215898
1991	23.013121749536417
1992	21.120203454147145
1993	23.535583867376957
1994	14.285828540850424
1995	21.943950695562126
1996	22.659346613506287
1997	19.033771061409855
1998	23.52005444494235
1999	22.539410988393488
2000	16.903644187287203
2001	19.902307308263808
2002	29.34722220398705
2003	24.687275432949864
2004	23.115137559688616
2005	23.34190632858568
2006	25.66449287793126
2007	27.10420458507637
2008	24.065196783773885
2009	22.106899323127315
2010	24.631688768385086
2011	25.308887162080232
2012	20.709720071107114
2013	24.43260815530945
2014	22.664546658084777
2015	22.62513581078807
2016	25.282293430458235
2017	24.73695421845511
2018	23.355212288898244
2019	21.77143633489721
2020	22.655194157674167
2021	23.927669181990154
2022	21.42301586649199
2023	20.759835856286273