Year % of merchandise exports 1963 12.060283245686938 1964 13.188642448484334 1965 16.32495455428956 1966 23.31178774186839 1967 28.150346812668886 1968 31.94819464913275 1969 31.74582840392676 1970 28.666277878028694 1971 32.15063375151477 1972 29.931942940215585 1973 30.5139007672912 1974 30.376801422455856 1975 26.98715581188956 1976 24.134361081259737 1977 20.108764327130874 1978 34.421534051419314 1979 24.35845537434854 1980 35.37308967784181 1981 36.91372597938572 1982 39.82227335302403 1983 33.62365275159423 1984 24.85264954794196 1985 25.698649193058404 1986 14.66444256523321 1987 22.60518042214358 1994 45.08670250766749 1995 38.804958927297726 1996 41.136037841349605 1997 38.75068542687913 1998 46.48648228623307 1999 50.038048794542576 2000 20.595700789190026 2001 21.735382888742322 2002 23.695616134097907 2003 22.566016445102413 2004 23.66776248004782 2005 78.65456932898323 2006 77.15533469153357 2007 74.98803275313844 2008 73.95813509355372 2009 71.28017196088626 2010 71.50836246895147 2011 67.75339599922223 2012 70.28435438379152 2013 72.94583770995409 2014 75.47018160292083 2015 76.15524248620183 2016 76.89247587096571 2017 76.02424680543035 2018 76.78961457507214 2019 75.87009954537812 2020 74.5094299976418 2021 75.97933303959834 2022 74.20328997174282