> On and before May 2021, the death rate is about one per month. It's pretty much impossible that just by chance there would be seven consecutive months with no deaths
That's possible, but it's worth pointing out that only unnatural deaths are cataloged. This does not include deaths by a natural cause.
It is difficult to die unnaturally in Japan, and given the small number of US Citizens living there, it is certainly possible to have long periods of no unnatural death.
By that reasoning there shouldn't be a death per month in the previous years. But there was. Going from that to nothing is a drastic change and rather improbable.
That's possible, but it's worth pointing out that only unnatural deaths are cataloged. This does not include deaths by a natural cause.