Historic Delays, by the Senate, of President Obama's judicial nominations

http://www.whitehouse.gov/infographics/judicial-nominees

1 in 10 Federal judgeships is vacant, due to delays by Senate Republicans in confirming nominations.

Percentage of all Nominees Confirmed:
Carter 92.8%
Reagan 93.3%
Bush I 77.9%
Clinton 84.2%
Bush II 86.8%
Obama 62.6% (97 of 155)

Average wait time between Judiciary committee vote and confirmation:
Circuit Court Candidates
Bush 29 days
Obama 151 days
District Court Candidates
Bush 20 days
Obama 103 days

The number of vacancies at this point in their presidencies:
Bush 52
Obama 90