1989 to the present. Covers the most recent 10 years. More than 200,000 records representing articles, books, conference proceedings, government documents, book chapters, and statistical di rectories about public affairs.
Every article is indexed.
PCI Web currently indexes over 10.75 million articles in 3,142 journals. Every year, it adds records for more than one million new articles. It will grow to encompass over 5,000 journals and 20 million individual articles. Over 250 primary research journals are scanned by specialized scientific editors to add approximately 23,000 titles to the database each year. From July 1996 onwards, informative abstracts have been added when available.