It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Indexes hearings, reports & prints (most from 1993). All are available on microfiche in Miller.
Committees hold hearings to decide whether to send the bill to the floor or not. Hearings may be the most useful to you since they include expert testimony on both sides that won't go into the committee's report. An expert can give statistics or other documentation that is then appended to their testimony. Hearings can be very lengthy documents, but full of information.