Where it comes from
The line in the source
Okinawa: August 11, 2022; Kanazawa: November 20, 2020; Shibuya: November 22, 2019
Explore / Figure
Record
2009-2022
EstimateOur model or estimate. Treat it as an order of magnitude.
Found in one pass only. The research team reads every source twice, independently; this record turned up in one reading but not the other, so treat it as less certain than its grade.
The line in the source
Okinawa: August 11, 2022; Kanazawa: November 20, 2020; Shibuya: November 22, 2019