Business enterprise R-D personnel by industry presents research and development (R&D) statistics on personnel in the business enterprise sector. Measured in full-time equivalent are the number of total R&D personnel and researchers in the business enterprise sector by industry according to the International Standard Industrial Classification (ISIC) revision 3.1. Data at the industry level are presented starting in 1987 including sectors such as agriculture, mining, manufacturing, electricity,construction and services sector when most of the countries converted from ISIC rev.2 to the current ISIC rev. 3 classification.