Year	% of commercial service exports
1977	24.180633684316913
1978	27.93728877349677
1979	27.28675799669842
1980	26.830764037523373
1981	28.400020208449114
1982	30.479989451041444
1983	33.165951541221695
1984	31.75203406291867
1985	31.391486675474198
1986	30.062559649132087
1987	36.26298539735683
1988	34.65494512505537
1989	33.18763517903105
1990	27.198850290592162
1991	28.087302792222385
2005	34.295279234569875
2006	36.8982509831783
2007	27.812654773932625
2008	28.778855337434848
2009	23.36130967771009
2010	23.533558461682635
2011	26.83291410157077
2012	27.920599223860023
2013	25.049535667705523
2014	22.333789312400114
2015	19.264962309728208
2016	23.428002448409
2017	22.267261787615393
2018	22.44882440635019
2019	17.715652951197438
2020	19.841346105872752