Here is some data
Index size

* ~ 1998: ~ 25,000,000
* August 2000: 1,060,000,000
* January 2002: 2,073,000,000
* February 2003: 3,083,000,000
* September 2004: 4,285,000,000
* November 2004: 8,058,044,651 web pages, 880,000,000 images, 845,000,000 messages, 4,500 news sources


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