IHE has details on History and other academic job markets. I've never understood why the APA doesn't collect this data in as timely a way.
ADDENDUM: This chart, showing the number of jobs in a sub-field and the number of new PhDs in that sub-field is striking:
Entry-Level History Positions vs. Specialties of New Ph.D.s
|Field||Number of Openings||Number of New Ph.D.s|
Is there any sub-field of philosophy where there are more jobs than new PhDs? I'm skeptical there is, but invite data from readers in the comments.