Year % of commercial service exports 1974 7.3128640006710395 1975 2.4918531576540803 1976 29.125462676852315 1977 9.78942144132745 1978 69.58802498265453 1979 59.375000000000064 1980 45.576407506702466 1981 32.198952879581064 1982 29.29936305732487 1983 43.263598326359734 1984 25.309917355371823 1985 32.43295019157101 1986 60.60137457044673 1987 23.47144456886891 1988 26.722222222222218 1989 33.58540630182421 1990 15.501730103806228 1997 3.6471637460991384 1998 3.0753385700192712 1999 2.1291986183124845 2000 2.2083230591262026 2001 1.6053387326708124 2002 1.6053720937997225 2003 1.6053719008264533 2004 1.6053719613648703 2005 1.605338732670813 2006 1.6053387326708086 2007 2.0548616480273547 2008 1.6053387326708155 2009 1.6102530200609038 2010 1.3422667337929846 2011 1.0646085098460192 2012 1.2932390534793436 2013 0.9200110932812644 2014 0.24351348451306432 2015 0.47391260462170176 2016 0.3477937294415882 2017 1.053302523465426 2018 0.049361915089518454 2019 0.07513819287988364 2020 3.868477820294868 2021 7.675216392246526 2022 4.177656018957308