mechstats.com has been around for a while to capture individual stats, and so it seemed easy enough to add the CW information as well.
https://www.mechstats.com/CW
mechstats captures the PGI pubs and restructures things, getting some value from differences from one pull to the next. All that info is stored in SQL and easily accessible. Ive included a list of the existing web APIs that can get to this, in a doc at http://1drv.ms/1uYtBpr
The current layout of the CW page is crap as I wanted to get a) the timely reliable gathering,

As with all things for mechstats, its really just a project for me to play with deployments, so if you do spot some API that you want to use keep in mind that I will moving things soon to a custom dev portal (azure managed api) at https://mechstats.portal.azure-api.net, and URLs as documented will change.