in other words while per cent of children move out of poverty in norway each year only per cent do so in portugal for instance iceland and the uk combine some of the highest exit rates ie one of the lowest rates of remaining in poverty with some of the highest poverty entry rates in the comparison suggesting a large degree of mobility in and out of poverty between any two waves over the period persistent poverty is defined by eurostat as remaining in poverty with household income below of contemporary median income in the current year and at least two out of three preceding years