TY BOOK A1 OECD YR 2001 T1 National Accounts of OECD Countries 2001, Volume I, Main Aggregates DO https://doi.org/https://doi.org/10.1787/na_vol_1-2001-en-fr UR https://www.oecd-ilibrary.org/content/publication/na_vol_1-2001-en-fr