The Labour Force Survey is a twice-yearly rotating panel household survey, specifically designed to measure the dynamics of employment and unemployment in the country. It plans to measure a variety of issues related to the labour market, including unemployment rates (official and expanded), according to standard definitions of the International Labour Organisation (ILO). 5 data files. Person data: 98,748; Workers data: 67,836; Migrant data: 6,248 cases; House data: 26,835 cases; Stratpsu (Stratum and PSU numbers) data: 2,699 cases;