neoncube I collected the top 15 courses in all categories in all languages and their creators' Teaching and Learning. The distribution is extremely sparse between 2,300,000 and 5,300,000, and then increases again after 5,300,000.
However, sparse areas are not missing. It is probably due to the way I collect them.
I did not scan by number, and the distribution would indicate that there are few popular courses in the sparse areas. Perhaps the early courses have always been at the top of the popularity, and It seems that the recently created courses are included in Teaching.
I'm afraid of getting banned for overloading, so I won't do this kind of survey any more. 😎