Eurostat, Luxembourg. 27111400 (01/1988-..) Ethylene, propylene, butylene and butadiene, liquefied (excl. ethylene of a purity of >= 95% and propylene, butylene and butadiene of a purity of >= 90%): CN 27111400 /Exports /Unit = Prices (Euro/ton) /Partner: Portugal /Reporter: Eur27_2020 /27111400:Ethylene, Propylene, Butylene and Butadiene, Liquefied (Excl. Ethylene of a Purity of >= 95% and Propylene, Butylene and Butadiene of a Purity of >= 90%).