Year	% of commercial service exports
1977	24.18063368431691
1978	27.93728877349678
1979	27.28675799669842
1980	26.830764037523373
1981	28.400020208449114
1982	30.479989451041444
1983	33.165951541221695
1984	31.75203406291866
1985	31.391486675474198
1986	30.062559649132087
1987	36.26298539735683
1988	34.65494512505537
1989	33.18763517903105
1990	27.198850290592166
1991	28.087302792222378
2005	34.66644679911881
2006	37.276351845392234
2007	28.05617359250755
2008	29.078607922016168
2009	23.596414308319822
2010	23.768729207875204
2011	27.124427324508872
2012	28.221961896765073
2013	25.310063723026673
2014	22.565413993405816
2015	19.457523011575404
2016	23.65567900680562
2017	22.49660754484047
2018	22.688784032498425
2019	17.91039935695297
2020	20.059310001481954