is the country code of origin (e.g. "chl" for Chile)
DESTINATION
is the country code of origin (e.g. "chn" for China)
VARIABLE
is the variable to visualize and it can be "imports", "exports" or "exchange" (trade exchange)
CLASSIFICATION
refers to the trade classification that can be "6" (HS92 6 characters) or "8" (HS92 8 characters) for the year 1995 and going or "4" (SITC rev.2 4 characters) for the year 1962 and ongoing
YEAR
is the year and the OEC's API ranges from 1962 to 2014
Value
Creates an HTML file with a treemap visualization for a given year.