Year % of commercial service imports 1971 7.901840490797548 1972 6.4229765013054925 1973 6.384395813510947 1974 6.3656716417910655 1975 6.843325604504797 1976 5.313283208020046 1977 4.263237518910738 1978 6.044201373099426 1979 6.713435589291594 1980 4.4374287910093875 1981 6.2206264209869495 1982 5.976423197481376 1983 5.474566209056142 1984 4.982618680253796 1985 3.888608519035536 1986 5.16729053472756 1987 4.84850223611658 1988 4.010612012367545 1989 4.9442211275475 1990 5.214731896523051 1991 5.474178981126046 1992 5.267046461462886 1993 6.477305535047419 1994 5.973677240200717 2003 1.5125582924851602 2004 7.660468878603374 2005 10.024334893602818 2006 9.758958714534801 2007 10.709902583388107 2008 6.114708092814699 2009 7.10724501300029 2010 5.020443791940765 2011 6.229712997108804 2012 7.706145236080969 2013 7.766507839859176 2014 7.1675260806968195 2015 1.7165237752786702 2016 2.1345731443223834 2017 1.5460487825215412 2018 1.5743335802395262 2019 1.2616597047161973 2020 1.3590838465339565 2021 1.7691220201049578 2022 1.0777133150990195