This is mainly due to the exhaustion of temporary UB and the assumed ineligibility for social assistance and housing benefits, which will be analysed separately below. Similar drops can be observed in other countries when unemployment enters a third (e.g. Netherlands, Switzerland) or fourth year (e.g. Sweden, Iceland). The average net replacement rate averaged over the first two years of an unemployment spell is displayed for 2007 and 2009. While the generosity of UB remained fairly steady between 2007 and 2009 in most countries, it increased significantly in some of them, especially in the United States.