Seasonally adjusted eurozone and EU series are then produced using the TRAMO & SEATS method. Missing components for eurozone and EU aggregates are estimated using an ARIMA method. When calculating the data for European aggregates (EU and euro-zone) Eurostat makes use of confidential data. 2/2004 — Theme 4 — Statistics in focus eurostat ###>• 2/2004 — Thème 4 — Statistiques en bref eurostat