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