International relations 152,380 Islam 150,865 Intellectual life 133,444 Indians of North America 112,660 Industries 88,837 Influence 78,687 In literature 58,442 International economic relations 49,231 International cooperation 43,825 Immigrants 40,818 Industrial management 36,574 Indians of South America 35,761 Islamic law 35,252 International law 33,409 Influence (Literary, artistic, etc.) 32,408 Information technology 32,380 Income tax 27,796 Investments 27,635 Investments, Foreign 25,693 Internet 25,492 Industrial relations 24,438 International trade 24,255 Instruction and study 23,022 Intellectuals 22,682 Interpretation and construction 22,340 Islam and politics 21,586 Interpersonal relations 21,565 Investigation 21,012 Italian literature 20,561 Indexes 20,541 Interviews 20,185 Industrial policy 19,888 International business enterprises 19,651 Information storage and retrieval systems 19,100 Italian language 19,038 Indians of Mexico 18,366 Information services 17,848 Inheritance and succession 17,788 Indigenous peoples 17,197 Informatique 15,565 Interfaith relations 15,486 Insects 15,113 In art 14,873 Identification 14,709 Income 14,525 Instrumental music 14,389 International economic integration 13,723 International finance 13,661 Industrial safety 13,508 Irrigation 13,504 Insurance 13,415 Instrumental ensembles 13,334 Infants 13,214 Intelligence service 13,182 Islam and state 13,031 Imperialism 12,920 Interior decoration 12,656 Identity 12,396 Indians 12,328 Image processing 12,220 Income distribution 12,110 Islamic philosophy 11,879 Intellectual property 11,346 Illustrations 11,175 Installations (Art) 10,804 Inscriptions, Chinese 10,697 Italian poetry 10,645 Imprints 10,078 Infant 10,037 Intercultural communication 9,938 Inflation (Finance) 9,909 Internal Medicine 9,664 Internal security 9,565 Industrial Management 9,548 International 9,484 Illustration of books 9,394 Identity (Psychology) 9,203 Industrial applications 9,146 Industrie 9,018 Incidental music 8,746 Islamic ethics 8,588 Industrial hygiene 8,508 Infrastructure (Economics) 8,504 Iraq War, 2003-2011 8,471 Interest 8,145 Information Systems Applications (incl. Internet) 7,727 Islamic civilization 7,712 Integrated circuits 7,526 Islamic fundamentalism 7,493 Indians of Central America 7,464 Industrial productivity 7,426 Irish authors 7,423 Idioms 7,383 Illumination of books and manuscripts 7,369 International status 7,310 Inquisition 7,281 Incunabula 7,252 Insurgency 7,239 Iron industry and trade 7,187 Industrialization 6,952