Labour input statistics are based on international standards for national accounts and aim to provide a comprehensive overview of the labour force within each industry. This includes data on the number of individuals employed in the respective industry and the total number of hours worked by all employees during a specified reference period. The results are derived from the integration of all available sources, including information from the Iceland Revenue and Customs' payroll register, individual and corporate tax returns, wage surveys conducted by Statistics Iceland and labour market surveys. Productivity, in an economic sense, is a measure of value creation relative to a specific input. Labour productivity is presented as an annual index, calculated based on the volume index of gross factor income and the number of hours worked.