Is the Consumption of Canned Fishes Really Concentrated?

The chinese and asians eat plenty of canned food. The market is big, it's in the sort of 30 billion dollar range. It's a substantial slice of the food supply. In portugal there are entire stores devoted to tin fish. And you go to the airport in lisbon, instead of like, caviar stands or, you know, fancy perfume stands,. There are entire stores dedicated to tin fish at airports.