Best Tool For Data Mining Public Government Salary Website

I’m wanting to pull the data from a governmental salary website (salary.app.tn.gov) to pull down all of the state employees salary data or a specific state agency salary data. I’ve looked a data mining and scarpers to pull the data. The site only allows for 100 records to be displayed at a time and currently this is taking hours to pull all the records manually. I’m just wanting to know a general approach on how to scrape or mine this data. Just point me in the right direction.

Thanks!