Unemployment benefit coverage percent of ILO unemployed. Note: Calculations based on administrative data can give different magnitudes of coverage rates than the survey-based measures reported here. Reasons include both measurement issues and conceptual differences (e.g., because the number of people registered with the employment service as unemployed may, depending on administrative norms and practices, be much higher or much lower than the number unemployed as reported in the labour force survey). SeeGrubb et al. (2009). Source:Immervoll and Richardson (2011) using European Labour Force Surveys and Current Population Survey (US).