From the National Institutes of Health’s Computer Retrieval of Information on Scientific Projects (CRISP) database:

Number of CRISP grants for chimpanzee research 1986-2008

Funding of research using chimpanzees spiked in the late 1990’s primarily due to HIV/AIDS research (see HIV/AIDS page for more information, including number of NIH funded projects.) As the chimpanzee proved to be a poor model, the number of federal grants given for their use in research began to decline significantly after 1998.

SOURCES

CRISP: http://crisp.cit.nih.gov/

Last Updated: April 2009