International relations 151,328 Islam 150,824 Intellectual life 133,411 Indians of North America 112,637 Industries 88,810 Influence 78,653 In literature 58,419 International economic relations 49,199 International cooperation 43,812 Immigrants 40,808 Industrial management 36,563 Indians of South America 35,751 Islamic law 35,247 International law 33,348 Influence (Literary, artistic, etc.) 32,384 Information technology 32,372 Income tax 27,795 Investments 27,617 Investments, Foreign 25,687 Internet 25,488 Industrial relations 24,432 International trade 24,070 Instruction and study 23,017 Intellectuals 22,675 Interpretation and construction 22,337 Islam and politics 21,579 Interpersonal relations 21,549 Investigation 21,008 Italian literature 20,559 Indexes 20,543 Interviews 20,184 Industrial policy 19,884 International business enterprises 19,649 Information storage and retrieval systems 19,099 Italian language 19,036 Indians of Mexico 18,357 Information services 17,848 Inheritance and succession 17,787 Indigenous peoples 17,158 Informatique 15,544 Interfaith relations 15,469 Insects 15,110 In art 14,866 Identification 14,707 Income 14,525 Instrumental music 14,386 International economic integration 13,719 International finance 13,660 Industrial safety 13,509 Irrigation 13,503 Insurance 13,414 Instrumental ensembles 13,313 Infants 13,212 Intelligence service 13,175 Islam and state 13,026 Imperialism 12,745 Interior decoration 12,652 Identity 12,385 Indians 12,319 Image processing 12,219 Income distribution 12,110 Islamic philosophy 11,876 Intellectual property 11,342 Illustrations 11,168 Installations (Art) 10,796 Italian poetry 10,643 Inscriptions, Chinese 10,628 Imprints 10,048 Infant 10,035 Intercultural communication 9,935 Inflation (Finance) 9,908 Internal Medicine 9,656 Internal security 9,563 Industrial Management 9,553 International 9,469 Illustration of books 9,387 Identity (Psychology) 9,199 Industrial applications 9,141 Industrie 8,970 Incidental music 8,744 Islamic ethics 8,587 Industrial hygiene 8,507 Infrastructure (Economics) 8,494 Iraq War, 2003-2011 8,470 Interest 8,145 Information Systems Applications (incl. Internet) 7,727 Islamic civilization 7,709 Integrated circuits 7,518 Islamic fundamentalism 7,490 Indians of Central America 7,460 Industrial productivity 7,425 Irish authors 7,422 Idioms 7,380 Illumination of books and manuscripts 7,368 International status 7,310 Inquisition 7,282 Incunabula 7,251 Insurgency 7,237 Iron industry and trade 7,185 Industrialization 6,949