Japanese driving record (in EN) for cheaper insurance back home

I’m going back home soon (to BC) and my last Canadian driver’s license (from Ontario actually) expired right around the time I came back to Japan in 2018. I’ve been advised to obtain my “records” of driving in Japan these past 5 years and have them translated (so that ICBC don’t consider it a “gap” in my driving history and I don’t end up having to pay an arm and a leg for insurance).

Does anyone have any experience with this? What is the specific document I need to request and where? I saw some posts saying how they only got a document certifying their records since the last license renewal so I’m concerned. (That’s useless because I’ve renewed mine at least twice, the last time being a year ago).