Year % of commercial service exports 1970 0.8316008316008316 1971 0.9505703422053232 1972 1.3757523645743766 1973 1.1363636363636365 1974 0.9428403064230996 1975 1.1152416356877324 1976 0.9242144177449169 1977 0.7761966364812419 1978 0.8559732043170822 1979 4.245109476656615 1980 3.9884544738913674 1981 6.055463485323442 1982 6.526039692697432 1983 6.912019044688789 1984 6.364762771437289 1985 6.507955922990022 1986 7.078212837536294 1987 7.036383496876027 1988 5.558438241415477 1989 5.44555490404279 1990 4.701767396617613 1991 4.928423534626524 1992 4.610832390904436 1993 4.995975965592713 1994 5.048845272903723 1995 5.1048935218488145 1996 5.209441850855891 1997 5.776187610874076 1998 6.298045263429072 1999 9.85307936385012 2000 10.24325924682554 2001 10.136717066447224 2002 11.016946513672451 2003 12.171867016910728 2004 13.121151796170576 2005 13.39405960141902 2006 14.547375961086422 2007 15.92400096607358 2008 15.836425930604824 2009 15.680404964370485 2010 16.242306762528383 2011 16.975628051148664 2012 16.606172624651485 2013 16.360138018461743 2014 16.83072256384798 2015 16.215315390107857 2016 16.080505987889435 2017 16.700185091939392 2018 16.600936599088072 2019 16.527248219296666 2020 21.53743841009328 2021 22.034253758838126 2022 18.91375834046251