ARL has released the ARL Annual Salary Survey 2013—2014.
Here's an excerpt from the announcement:
The 2013—2014 data show that salaries for professionals in ARL libraries kept pace with inflation. The median salary for professionals in US ARL university libraries in 2013 was $68,773, an increase of 2.3% over the 2012—2013 median salary of $67,257. The US CPI rose 2% during the same period. The experience of professionals in Canadian ARL academic libraries was more favorable: while the Canadian CPI rose 1.3%, median salaries in Canadian university libraries increased from $87,120 (Canadian dollars) to $89,163 (Canadian dollars) a rise of 2.3%.