Meanwhile, the focus on changes may hide important differences in the levels: the highest poverty rate for children in large families was observed in Bulgaria (62%), where there was virtually no change between 2008 and 2012 for any of the two sub-groups. Data for 2011 is used for Belgium and Ireland. Break in the series for Austria and the UK in 2012. Migrant households are defined as those with at least one adult born outside the EU.20 Countries with insufficient case numbers of children in migrant households are excluded from the analysis.21 In countries like Iceland and Greece, where the overall child poverty rates increased substantially during the Great Recession, poverty rates rose much faster for children in migrant households between 2008 and 2012.