OECD Quarterly output gap revisions database, August 2008:
This database allows users to assess the reliability of the first estimates of quarterly output gap of 15 OECD member countries that have a sufficient long history of seasonally adjusted quarterly Economic Outlook estimates to derive meaningful summary statistics. Countries covered: Australia, Canada, Finland, France, Germany, Iceland, Ireland, Italy, Japan, Netherland, New Zealand, Norway, Sweden, the United Kingdom and the United States.