The number of high school students taking the Computer Science AP test is also dropping.
In January, The Chronicle of Higher Education had a colloquy about female enrollment in computer science. The moderators ask:
Only 17 percent of undergraduate computer-science degrees were awarded to women in 2004, according to the Computing Research Association, down from 19 percent in 2000. Why is the number so low, and dwindling?
Here is a nice graph of the percentage of baccalaureate degrees awarded to women, by field, from 1973-2003.