In June, ABC chief executive Chris Boyd promised that the Island of Ireland report for the second half of 2008 would break out circulation for Irish newspapers in the Republic of Ireland, Northern Ireland and other countries.
Andrew Sinclair, deputy managing director, OMD Ireland said: "It's an important new measure for media planners/buyers as it offers a wholesome view of the true circulation breakdown, i.e. number of copies sold not only within the Republic, but also across Northern Ireland and indeed overseas."
"The report has thrown up some interesting results, with titles such as the Sunday Independent and Sunday World showing overseas sales of 17,463 and 16,595 respectively," he added.
Sunday World is the paper with the largest circulation across Ireland, but it sells 65,436 copies in Northern Ireland and, as such, is only the second largest in the Republic of Ireland. The Sunday Independent has a circulation of 258,767 in the Republic of Ireland compared to Sunday World's 210,093, but it only sells 6,794 copies in Northern Ireland.