High Technology Indicators Summary of variables and indicators Coverage rate of the foreign trade of high tech products by groups of products and period. Units: percentage 2018 2017 1. Manufacture of aircraft and spacecraft 122.7 101.0 2. Office machinery and computers 20.5 22.3 3. Electronic Material radio, television and communications equipment 27.2 28.3 4. Pharmaceutical products 68.8 77.4 5. Scientific instruments 38.2 38.9 6. Electrical machinery and material 43.6 34.5 7. Chemical products 114.0 117.6 8. Mechanical machinery and equipment 167.9 116.2 9. Weapons and ammunition 318.3 313.9 Coverage rate of the foreign trade of high tech products 54.7 55.5 Coverage rate of total foreign trade 89.2 91.3 Notes: 1) Source: Own compilation using data from the State Tax Administration Agency Coverage rate defined as the quotient between exports and imports by 100 Source: National Statistics Institute