Year % of commercial service imports 1975 6.798388856071304 1976 6.345017711729901 1977 5.70842280602026 1978 6.048576501244452 1979 6.561541332487369 1980 5.7218709512960135 1981 6.0912381738383505 1982 6.027513627612704 1983 4.972677836794595 1984 5.563330899922354 1985 5.451139821807483 1986 6.783303704307654 1987 5.944839900754159 1988 5.001920912459977 1989 5.080310953260837 1990 6.2956221121577975 1991 5.87839692747402 1992 6.669283952791395 1993 9.303318734696775 1994 8.547454983861885 1995 7.385078449598473 1996 6.43124116059757 1997 4.780211363663941 1998 4.883709874592293 2013 8.767083269370628 2014 10.06925467335298 2015 9.635675343242507 2016 8.836850678607306 2017 7.4832175167933555 2018 6.1736118193371174 2019 5.683737604826807 2020 8.82285103875191 2021 7.627546507906892 2022 5.492258506535736 2023 3.7036759975800395