Did 1.5m brazilians just decide to sign up for Telegram, or is number the total amount of Telegram users?

The tweet isn't exactly clear on this and doesn't actually even indicate that these are brazilians.

Edit: This shines some light on it. Brazilian Judge Shuts down Whatsapp, leading to more Telegram users. http://techcrunch.com/2015/12/16/brazils-congress-has-shut-d...