Year % of commercial service imports 1977 29.250975327340406 1978 22.063020978951204 1979 26.17525250661342 1980 27.86800508030897 1981 27.154141586624068 1982 31.122564281883783 1983 31.32345285623852 1984 28.72325515696934 1985 27.873199558526725 1986 26.697119545802625 1987 26.903408530473506 1988 24.88513204408966 1989 25.815674768659957 1990 26.962313702670993 1991 24.841535239954904 1992 28.612810457414305 1993 32.39002051028861 1994 32.77614678690931 1995 31.656086507719014 1996 27.972564977778514 1997 30.105753215663512 1998 34.290722948789586 1999 33.20046130711044 2000 36.238281152528515 2001 33.658775990068705 2002 36.82182271296849 2003 36.30621828120161 2004 38.484200840681964 2005 38.820790949581564 2006 43.78464403977533 2007 44.91929567487007 2008 45.0116717820723 2009 45.23657215997032 2010 42.49368265373693 2011 46.27107546444136 2012 48.814734822386015 2013 52.377956303999966 2014 53.56745180395109 2015 47.842256835478075 2016 50.88278300827986 2017 51.950799057017136 2018 48.7562123157517 2019 53.14676701548115 2020 58.99482696244246 2021 52.92553805336867 2022 52.98740530590277