At least two a day on landline, starting right at 8am, and at least five or six a day on my cell.
[1]: https://www.fcc.gov/consumers/guides/stop-unwanted-robocalls...
[2]: https://docs.fcc.gov/public/attachments/DOC-395670A1.pdf
Nice...
Either way, a human is not a robot. Ignoring the do not call list would be up to the FTC to police. https://www.donotcall.gov/report.html
A personal trick of mine was to answer those calls, ask them to hold, and leave them waiting indefinitely. I started a leaderboard with my friends back in the day, and the winner was ~40min.