We'd like companies to use the industry data to think about ways to improve their working environment.

Education industry? Do they mean the private sector?

Here's a start - Root out the institutional bullying, and as for "working environment" in the literal sense of the word, how about making offices and work places a bit more inviting and comfortable (especially considering how long your average Taro Tanaka spends at work). Every office I have ever been in in Japan is various shades of grey or beige, and "staff rooms" are glorified storage cupboards; how can one relax when there are reminders of work everywhere you look, even on your break?