Hmm, I'm little suspicious of the accuracy of these numbers...
I looked at Japan, and there's a very high bar for Tokyo, which is expected (and a shorter line right next to it which is probably Yokohama)—and then there's a slightly shorter but still pretty extreme bar that looks like it's smack dab in the middle of Nagano prefecture, which is relatively speaking, the boonies. There seems to be almost nothing for Osaka and other big Japanese cities....
I looked at Japan, and there's a very high bar for Tokyo, which is expected (and a shorter line right next to it which is probably Yokohama)—and then there's a slightly shorter but still pretty extreme bar that looks like it's smack dab in the middle of Nagano prefecture, which is relatively speaking, the boonies. There seems to be almost nothing for Osaka and other big Japanese cities....