Year % of total merchandise exports 1960 44.40552016985138 1961 44.29896249420937 1962 48.519439891506025 1963 46.077697752003246 1964 45.8101906038745 1965 45.455423735363446 1966 48.64119519667148 1967 49.856994622155035 1968 46.77535338593031 1969 46.36012840883297 1970 38.37755911175945 1971 40.61117697682396 1972 39.97848371970414 1973 43.34185200232407 1974 45.08197835108421 1975 40.19360190241656 1976 42.62021065605975 1977 39.70163456460806 1978 40.87706519612189 1979 40.72368998863888 1980 42.02745224931182 1981 40.528297226364565 1982 42.65636973433375 1983 44.84157027119403 1984 46.10209562493184 1985 44.4670352044025 1986 44.823230638965384 1987 51.54838236649872 1988 51.53680776364118 1989 54.541158100751886 1990 65.5789171600442 1991 70.4029360519696 1992 66.76995250423924 1993 71.43875691527171 1994 62.63200673048589 1995 61.33166784241691 1996 61.13796075247957 1997 62.11573007031566 1998 65.58153888359821 1999 69.37713692849607 2000 69.35742428900109 2001 70.30375836707475 2002 69.22890638871603 2003 69.00811779156109 2004 70.51818081759428 2005 69.7445049326043 2006 70.0402389074369 2007 66.67688862647171 2008 67.09017785867803 2009 63.390165831196875 2010 64.30892430088899 2011 61.146981099623645 2012 63.036539353908815 2013 64.4975542150338 2014 66.1799684532514 2015 66.95524176730041 2016 66.81992303445165 2017 66.36088159355494 2018 66.95525030942439 2019 65.65120063563353 2020 65.19424536773808