Should I put my last arrival stamp date on the TM 47 for my 90-day report?

The original poster (OP) is preparing to complete their first 90-day report at Chaengwattana for a retirement visa after staying in Thailand for 8 months, with previous departures for emergencies and dive trips. They ask whether to indicate their most recent arrival date, which is November 9th, on the TM 47 form. Commenters confirm that the OP should indeed write down the last stamp date of November 9th as their arrival date.