I have just done an annual update of “City competition to consume in Japan”. This is the second annual update. The latest year is now 2020.
Hamamatsu-city lost the top position both in consuming dumplings and grilled eel in 2019. It came back to the top in both in 2020. Congratulations, Hamamatsu-city!
If you can read Japanese, try my shiny app. For example, select item level 5, select “282 納豆”, and you can see how divided Japan is.