Year % of commercial service exports 1975 2.9233870967742033 1976 2.75862068965518 1977 2.6315789473684204 1978 2.2727272727272783 1979 1.8548387096774168 1980 1.5151515151515156 1981 1.5204678362573096 1982 1.5624999999999987 1983 1.6190476190476213 1984 2.2033898305084723 1985 1.4187866927592943 1986 1.0869565217391317 1987 1.42857142857143 1988 6.36682242990655 1989 4.270633397312857 1990 4.885654885654882 1991 8.603491271820465 1992 6.48809523809524 1993 5.9931506849314955 1994 5.756929637526645 1995 5.0543637966500174 1996 8.563588794588727 1997 8.060404000784464 1998 2.9988038958819865 1999 1.758450269173065 2000 2.5028181458123835 2001 2.8851292914961983 2002 2.7761534553332705 2003 1.5387034829823825 2004 2.3220279545113023 2005 2.9464552796889096 2006 2.4146981627296538 2007 1.31098091536632 2008 0.5592503022974602 2009 2.0775623268698076 2010 2.1630521176336974 2011 1.627399406793891 2012 5.325397909845778 2013 2.410370688068984 2014 1.6624518999428892 2015 2.1871924709844524 2016 3.4785474322946652 2017 1.1429077713804512 2018 1.0886058201943878 2019 2.930722915142507 2020 4.0681610384913105 2021 2.202193892882658