Year % of commercial service imports 1977 7.173806006893171 1978 6.621998142497029 1979 6.369504730105718 1980 7.0628663836668935 1981 5.696666368755019 1982 6.36818027787192 1983 5.261710514254277 1984 5.219672131147546 1985 3.8334962528510914 1986 6.340217632689329 1987 6.797365599632409 1988 7.878581173260558 1989 7.705709240729876 1990 9.691304764643895 1991 9.776776132217206 2005 3.6767943637164278 2006 3.573792190602234 2007 3.921104997784777 2008 3.7444171824716808 2009 2.2320331111706544 2010 2.4165246291667066 2011 1.9004646068495632 2012 2.204621032474522 2013 2.529975278716356 2014 2.416652506555998 2015 2.5396197285702318 2016 2.254023228320259 2017 2.844818318536533 2018 2.5904820148922076 2019 2.136171493820255 2020 2.7100327687931154 2021 3.2290047840842364 2022 3.6002759034440994 2023 3.2646976027822348