Over the past 12 years, the U.S. Government has collected many thousands of reports of vaccine damage.
This database, called the Vaccine Adverse Event Reporting System (VAERS) is available for anyone to download.
However, the data available from the government is difficult to use:
Medalerts.org - click on "Search Vaers Database" on the top middle blue section of the page.the number of events has now gone up to 16,000 in 2003 (I believe it was 14,000 in 2002). It seems to be steadily increasing.
Medalerts provides information from various online sources with regard to adverse vaccine reactions, poisoning and disease. Credit is given when the source is known