Year % of total merchandise exports 1960 4.786131196390259 1961 4.700803118938177 1962 4.822169742795134 1963 4.867407873671154 1964 6.02639879861436 1965 6.353675513493232 1966 4.969551202367788 1967 4.376087573504928 1968 4.654532347351096 1969 4.966764153560949 1970 4.596955114742933 1971 4.828495598282563 1972 4.6214202492711856 1973 4.47192848014215 1974 3.219671555021989 1975 3.264673353690935 1976 3.0611410112673774 1977 3.0980622781900573 1978 3.415035459723951 1979 2.9523550345846203 1980 2.415557981858343 1981 2.8043823431496744 1982 3.3325710827990447 1983 3.467491965913163 1984 3.609847480416305 1985 3.7722224365580814 1986 4.177602337267144 1987 4.02993186540214 1988 4.132790174682416 1989 4.565679427239132 1990 4.2459337968198705 1991 4.446689408773427 1992 5.092131562570773 1993 6.154765275817967 1994 7.062096031378205 1995 7.888823209589672 1996 7.308066563792718 1997 7.767782127026475 1998 7.989150431903874 1999 6.617748375004205 2000 6.229846177085671 2001 6.764013711067514 2002 7.151175566666823 2003 7.42571998890144 2004 7.552075951904868 2005 7.364515358157815 2006 7.8373185323693555 2007 9.029651716775538 2008 9.32911513043176 2009 10.672551685383825 2010 10.5997170332505 2011 10.0259051281736 2012 9.773717782433582 2013 10.476704577868274 2014 10.352348196671175 2015 10.851219237375124 2016 10.700197393895868 2017 11.194664118034348 2018 11.098410294144184 2019 11.761750234516906 2020 12.600023467808812