The study included the 28 EU Member States, as well as Switzerland, Lichtenstein, Iceland, Norway, Turkey, The Former Yugoslav Republic of Macedonia, Israel, Brazil, Canada, Japan and United States of America.
Uurimus hõlmas 28 Euroopa Liidu liikmesriiki ning Šveitsit, Lichtensteini, Islandit, Norrat, Türgit, endist Jugoslaavia Makedoonia vabariiki, Iisraeli, Brasiiliat, Kanadat, Jaapanit ja Ameerika Ühendriike.