When the total number of users in each of the continents relative to Asia. A number of similar value. That is, there are a lot of users in Asia, almost half of the people around the world.
When the total number of users on each continent with Asia. The number that has similar values. Which held that users in Asia, with almost half of the world.
When the total number of users in each continent compared to Asia. The number of the nearby. Which can be considered the user in Asia are very nearly half of people all over the world!