You can find the data here and on primer here. In both cases it is a zip file and not very useful.
you can download the up to date zip file here
I have created this scrip to regularly download and save the data in a json file cms_ltc.json.
Later I want to figure out how to store it and alert off of it. For right now, the history is stored in the git history. One day I will make it a fancy sqlite file and all will be good.