Year % of commercial service imports 1977 9.037055528948887 1978 10.513551863355003 1979 10.206630530583183 1980 9.261804803356736 1981 9.45485838103548 1982 10.433620001442751 1983 11.047879339219477 1984 10.827700959571642 1985 11.118499414827411 1986 10.96886973345275 1987 11.140360371898558 1988 11.461786340369969 1989 12.395071922075298 1990 11.896395193207868 1991 13.1962745850843 1992 13.279640514964477 1993 12.73367111189389 1994 14.439263979944828 1995 14.912602153186409 1996 15.309763665600014 1997 16.05441446509337 1998 17.199921132404043 1999 16.762773665522772 2000 18.184862959900613 2001 17.757432077118267 2002 18.76311449815839 2003 19.41649789548902 2004 17.26062868175551 2005 17.96033216391044 2006 18.356780005280353 2007 18.548443311902524 2008 20.361049327331106 2009 20.96370363666577 2010 19.403144163166342 2011 21.034759238204522 2012 20.542582286841096 2013 20.510022507412746 2014 21.661801415223334 2015 22.344437247297332 2016 21.524266971679335 2017 21.855518465225863 2018 21.82398828657726 2019 22.524306094936556 2020 14.65172654798662 2021 13.893789347481494 2022 18.383090423057293