Year % of commercial service exports 1974 43.14420803782523 1975 43.56552538370719 1976 49.25909295015719 1977 50.92295345104352 1978 49.08015768725361 1979 55.60578661844479 1980 51.59456118665025 1981 35.31528712251595 1982 37.52204585537917 1983 40.302035456336206 1984 42.781155015197506 1985 41.001294777729775 1986 48.41337386018241 1987 50.81688532461309 1988 53.17912074603379 1989 52.589779005524875 1990 42.74966505204589 1991 57.45545856749965 1992 54.988190304802664 1993 48.0680469471188 1994 41.89755529685679 1995 46.11447440836539 1996 49.59925002948971 1997 49.46652266691702 1998 46.85437971403445 1999 49.443051559362985 2000 43.883166663097654 2001 50.60175617789816 2002 49.02528254561929 2003 42.91544838620615 2004 35.884004162437755 2005 35.93086974848946 2006 35.27762803234504 2007 48.83961793701313 2008 46.48003057519573 2009 51.129421127782656 2010 48.35683788329683 2011 45.49693867634518 2012 37.685785429071565 2013 37.28724171867738 2014 36.33489060407452 2015 35.58201771104754 2016 36.90141254678525 2017 37.076374107087865 2018 40.83143091319412 2019 42.84424988123591 2020 18.131336545632813 2021 34.15482013264877