This was obtained from Social Security by the National Organization of Social Security Claimants Representatives (NOSSCR) and published in their newsletter (which isn't available online). Click on the image to view it full size.
Note that they were getting in an average of 2,798 new cases per workday in fiscal year 2016 but only disposing of 2,545 cases per day. That's a 9% shortfall. The backlog increased by 61,107 cases over the course of the fiscal year. Those are real people, most of whom will ultimately be found disabled.
Note that Senior Attorney dispositions totaled only 1,187 cases over the entire fiscal year. Social Security, you can pretend to credulous members of Congress that you care about the backlogs but don't try telling that to me. It's simple. If you care about the backlogs, you take the brakes off and increase the number of Senior Attorney decisions dramatically. If you're not willing to do that, you just don't care about the backlogs. Senior Attorney decisions are an excellent way of doing something quickly about the backlogs. They don't ultimately do anything other than quickly approve cases that would ultimately be approved anyway.