Eurostat, Luxembourg. Labour input in services - quarterly data: Business trend indicator: Persons employed / Statistical classification of economic activities in the European Community (NACE Rev. 2): Services required by STS regulation / Seasonal adjustment: Unadjusted data (i.e. neither seasonally adjusted nor calendar adjusted data) / Unit of measure: Percentage change compared to same period in previous year / Geopolitical entity (reporting): European Union - 28 countries (2013-2020).