Every YouTube channel on this general TOP 100 list got its rank due to its gain in subscriber count over the specific month. That month is defined in the calendar widget in the top part of the channel list.
Please note that the above ranking includes only channels that haven’t forbidden public display of their subscriber count. Moreover, the actual value of this count may be misrepresented due to YouTube’s rules for updating subscriber count, which are defined here.
Also, this TOP list of all channels across the globe includes only the 100 top-performing ones that belong to a country from the limited Easy Bloggers country list.

At the moment, this list doesn’t cover the full variety of independent states and territories for various reasons. Every month, the country list may be enlarged (or reduced, but that is extremely unlikely).
Therefore, any change in a channel’s monthly rank on this TOP list may be caused not only by a change in its metrics but also due to the addition of new countries or new channels.
Furthermore, some high-performing YouTube channels may not be presented in this ranking if they belong to a country that is not yet present in our country list. And please note that a country’s inheritance of any channel depends not on its author’s residence, but the most dominant geography of the channel’s audience.