A study by Cardiff University academics, which was funded by the BBC Trust, was published in August 2013 and examined the BBC's coverage of a broad range of issues. One of the findings was the dominance of party political sources; in coverage of immigration, the EU and religion, they accounted for 49.4% of all source appearances in 2007 and 54.8% in 2012. The data also showed that the Conservative Party received significantly more airtime than the Labour Party. In 2012, Conservative leader and then Prime Minister David Cameron outnumbered Labour leader Ed Miliband in appearances by a factor of nearly four to one (53 to 15), and governing Conservative cabinet members and ministers outnumbered their Labour counterparts by more than four to one (67 to 15).