> Eight years ago Japanese tourism was near 100% domestic.
Nope, calling bull on this. Not by a long shot. Japan has been a major international tourist destination, particularly in the winter for at least 20 years.
Well, the graph on
https://en.wikipedia.org/wiki/Tourism_in_Japan
does seem to suggest in 2017 there were 20 million more foreign tourists in the year compared with 2010, an increase of about 250%.
