Is there any way to graphically represent Craigslist job posting trends for the past 5 years?

People say there are no jobs, but there sure seem to be a lot on Craigslist. I’m curious about the actual decrease of Craigslist job postings, as well as how specific sectors have fared, throughout the recession, and would be interested if there are any websites that would be able to show these types of trends graphically. I realize Indeed.com shows trends, and that it aggregates postings from various job posting websites (presumably including Craigslist) but I’m more interested in the change in volume within entire sectors over time, and only for Craigslist ads.