Year % of commercial service imports 1977 34.42622950819672 1978 59.621136590229305 1979 47.88732394366197 1980 33.80588876772082 1981 15.463917525773196 1982 24.18379685610641 1983 14.697120158887786 1984 9.438567941415785 1985 4.62962962962963 1986 2.51414204902577 1987 3.8006230529595015 1988 1.3034033309196236 1989 1.896551724137931 1990 20.05457025920873 1991 36.684073107049606 1992 26.124567474048444 1993 29.09604519774011 1994 18.88331242158093 1995 19.29570670525808 1996 25.10460251046025 1997 28.67225408028231 1998 27.66798418972332 1999 24.41167241920301 2000 23.466028135288834 2001 21.9526285384171 2002 20.648616483189528 2003 21.228417775261818 2004 23.188782134510515 2005 21.435316336166192 2006 24.323355440043017 2007 19.449569495694956 2008 19.3813046402152 2009 20.174777761036612 2010 17.397576457010963 2011 16.790544657000122 2012 15.568312284730196 2013 14.511191888272432 2014 17.49426246609639 2015 15.980382139572901 2016 19.06013456686291 2017 23.83661857346068 2018 23.95707872550093 2019 22.43811881188119 2020 10.663746630727763 2021 8.837099254702473 2022 11.536695140993846 2023 14.623968066769482