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.