Year % of commercial service imports 1976 11.053089643167972 1977 9.251700680272108 1978 6.461864406779661 1979 4.2997542997543 1980 4.21591804570528 1981 4.570586067084408 1982 4.334575008465967 1983 5.777945619335347 1984 5.018400802944129 1985 4.736245036868973 1986 6.422786931024853 1987 5.59297815880792 1988 7.3604060913705585 1989 6.0817969908879 1990 2.7675267810068247 1991 3.664419576793164 1992 3.0025853324172807 1993 3.8808404612958576 1994 5.129424913932561 2009 5.739800546986891 2010 9.338471547781012 2011 11.124799140526893 2012 10.26074397682378 2013 7.443311184836925 2014 5.855635264068714 2015 3.927241706574764 2016 3.2769057879681527 2017 3.019637772649169 2018 2.402963922570496 2019 1.9006966873357445 2020 2.8304471080991807 2021 3.4767805180146745 2022 2.633422342317454 2023 2.557281584996579