Year % of commercial service imports 1967 12.114205024811735 1968 10.129747043427423 1969 11.464711014805697 1970 11.05418409939511 1971 12.678543962374803 1972 12.336346677000357 1973 15.647416848860807 1974 16.186928363869725 1975 15.602640687933485 1976 16.933457815282136 1977 17.341229021672973 1978 14.381995061581264 1979 15.517849615256681 1980 18.064565713881255 1981 18.45968345119593 1982 20.852319152309832 1983 18.760707118445247 1984 19.773907045793973 1985 20.188444889663646 1986 23.328792031526316 1987 25.844989988043025 1988 29.286382516073132 1989 29.131737148600827 1990 32.224897493054826 1991 31.913022741860896 1992 30.570320942133854 1993 31.570936768630165 1994 30.638460977576536 1995 31.19646533884255 1996 30.51979741328938 1997 30.12754004937344 1998 29.56119112446036 1999 29.40848143580958 2000 26.42341006335552 2001 30.166353176563966 2002 28.00365089233977 2003 24.51709557017175 2004 25.812943130228525 2005 19.874727820187534 2006 20.384077842463718 2007 18.023806124452722 2008 12.478277887135974 2009 11.597768972908938 2010 10.891695312869501 2011 14.12715664542372 2012 11.14086053537881 2013 8.165063801332712 2014 7.309536507228402 2015 8.01295158976701 2016 7.882063555282369 2017 7.624909874065384