Year % of commercial service exports 1977 4.6232558139534925 1978 5.492227979274613 1979 5.407801418439708 1980 5.785172212492706 1981 5.869109947643994 1982 6.408695652173901 1983 7.601416613007086 1984 7.736248236953465 1985 8.328788469029998 1986 9.70155355682749 1987 8.223787167449139 1988 8.607021517553777 1989 7.168092740822515 1990 5.931098696461827 1991 5.692618806875625 2005 21.370640713706493 2006 4.378980891719739 2007 5.710451383155169 2008 8.272790653747327 2009 9.072002432391727 2010 8.60901297164946 2011 8.448421538951804 2012 9.160607447705987 2013 8.066139063814074 2014 9.329013811079001 2015 12.410306720221072 2016 11.896232534427972 2017 10.643622822412551 2018 9.664974557271766 2019 12.458463971566099 2020 8.170527066745462 2021 10.701137325303787 2022 10.599305589606267