Year % of commercial service exports 1975 22.312076467969863 1976 24.382345420200043 1977 21.731643952173645 1978 20.27470179190419 1979 23.81333923270556 1980 26.239966659671726 1981 26.493016491251066 1982 23.96175476137242 1983 26.955237936223224 1984 25.28566515970261 1985 23.775230199813286 1986 19.431436791894374 1987 19.080777541589626 1988 19.471662829533006 1989 19.310849755883286 1990 17.187750146802745 1991 16.42609930574531 1992 14.946331661642686 1993 15.103192819766804 1994 15.865626499282676 1995 16.442686266925215 1996 16.993061812554135 1997 17.275354636073423 1998 16.440511955131953 2013 11.686011789711875 2014 11.132920635350928 2015 11.476436648111745 2016 11.001188777998404 2017 11.399505593449481 2018 11.507266880678852 2019 11.976209797966042 2020 18.367308567942196 2021 15.466900027200825 2022 12.690243980945759 2023 11.3999993246911