Year % of merchandise exports 1962 6.564727504960878 1963 6.2876915536739135 1964 7.535348689134269 1965 13.51470109150365 1966 17.033135837995154 1967 16.483837552894073 1968 10.777486893314304 1969 24.62954707184375 1970 29.953997116861512 1971 37.88297110523243 1972 43.50687264946582 1973 47.14859945323881 1974 53.99452741348565 1975 56.89461953220097 1976 62.96166696079043 1977 56.38256703771789 1978 55.54338540150707 1979 57.93425241053785 1981 62.52088149112943 1983 64.94935059959072 1996 60.746239588759224 1997 60.38565558703757 1998 60.57716738695296 1999 61.86102790194443 2000 64.28256453260272 2001 62.89240458087531 2002 65.7572568417322 2003 61.68003496035206 2006 66.28479511500193 2007 63.38818343610389 2008 61.16588161327508 2009 60.28855927127188 2010 58.125059932944275 2011 61.56108113180019 2012 60.336672414180036 2013 60.880193072910714 2014 59.79550988109799 2015 53.79207133338343 2016 53.583386456962636 2017 60.67030661947248 2018 63.718462706296286 2019 61.29022650956286 2020 63.97808290476159 2021 59.13567008249044 2022 62.93477020844101