Year % of commercial service imports 1975 5.249910104279026 1976 6.278287461773711 1977 4.808541973490417 1978 4.340136054421772 1979 4.033363121834967 1980 3.47842615472344 1981 3.654462628648546 1982 3.055991627420192 1983 2.4250535331905723 1984 2.152343008916712 1985 1.8220395173053991 1986 2.1267326732673264 1987 1.9351882160392835 1988 1.9426504779126799 1989 1.6714715869049896 1990 3.0876258140911816 1991 2.564148573479269 1992 2.739598278335717 1993 2.429181989861847 1994 2.163959010247441 1995 1.4357406100525392 2012 1.044828844573304 2013 0.6922706932952442 2014 0.46742222002210865 2015 1.4453333467692593 2016 1.5987671948287085 2017 0.8382124923456534 2018 0.6137729550210045 2019 0.44465181533126413 2020 1.503143445257021 2021 0.010611479870811428 2022 0.053380298296980225