Year	% of commercial service exports
1977	32.07054343775341
1978	30.796174560307218
1979	31.314326696723434
1980	29.06733560129814
1981	27.888353027015157
1982	27.175012122566724
1983	26.278637585533943
1984	27.55860589911768
1985	28.49964222814951
1986	23.94810257079065
1987	23.37104710141916
1988	26.73771404114312
1989	22.764885950754532
1990	23.877061257697132
1991	23.462438475286657
1992	22.09379403384672
1993	24.290503751129876
1994	25.059526535732306
1995	25.58759713473244
1996	25.139999012302056
1997	23.04703466438689
1998	20.515422955285008
1999	18.486957095438637
2000	17.64688881415478
2001	18.579591805251347
2002	18.19035271630835
2003	17.884213518840866
2004	17.59404731679032
2005	23.59285382994708
2006	22.09852368912533
2007	20.887366671911415
2008	20.38772559470863
2009	19.788081020513307
2010	21.058045642341778
2011	21.395392892129394
2012	20.996797769984617
2013	20.05546248692677
2014	19.463284606579247
2015	19.247299729329193
2016	18.694389409330753
2017	15.655444832238704
2018	15.280518223579504
2019	16.500350576990797
2020	19.31292660607659
2021	20.583327186754072
2022	18.77283489736385