@LoopLinndrum @cultured_grug Here is some random data I found on the internet. Japan is low. But it's always been low.
https://www.ispid.org/fileadmin/user_upload/textfiles/articles/CPR17_Hauck_SIDS_Trends.pdf
Here is some possible explanations as to why. (Other than vax that is).
https://allanimalsguide.com/why-are-sids-rates-low-in-japan/