Euro area data cover the EU member states that had adopted the euro at the time to which the statistics relate. Greek data are included in euro area aggregates as of January 2001, Slovenian data as of January 2007, Cypriot and Maltese data as of January 2008, Slovakian data as of January 2009, Estonian data as of January 2011, Latvian data as of January 2014 and Lithuanian data are included as of January 2015.