Year % of commercial service imports 1977 4.806786050895397 1978 5.0645481628599756 1979 5.79044117647059 1980 5.586206896551708 1981 5.479452054794527 1982 5.701078582434492 1983 5.5296469020652985 1984 5.044955044955059 1985 5.643524157531466 1986 5.228489090160577 1987 4.287515762925601 1988 4.419889502762421 1989 4.120965214666254 1990 5.8976109215017285 1991 7.685379765836091 1992 7.011221230239988 1993 4.366812227074226 1994 20.23973077748618 1995 25.978504213728936 1996 27.07085823078585 1997 32.111308623841616 1998 24.315366944559745 1999 25.64342797135787 2000 29.861134489566115 2001 23.60386372753724 2002 35.15601815048159 2003 42.18557603679054 2004 44.58867755422813 2005 38.41304616037472 2006 38.539276980411344 2007 40.552276335601725 2008 37.355299505100646 2009 31.890932786345594 2010 29.96589241574557 2011 27.20230479580535 2012 32.0084260993328 2013 27.88105989759142 2014 30.1590309615025 2015 32.33412764931844 2016 31.95081771966028 2017 33.60840098837393 2018 33.75712563232662 2019 36.444958787901484 2020 21.987018115477447 2021 23.653324043437415 2022 21.038022927928143