Are they actually users with bets or stats are only for Nationality of Registered accounts on Betkin.com gambling site?
I don't know but I guess they are statistics for registered accounts or active (online) accounts, and perhaps don't represent users with bets on the platform.
Actually, I don't know if they are betting but it is a statistic that since the launch of Signature and their other marketing systems, their game players are increasing. Since the number of accounts on the Betkin casino site is increasing and many are playing the gameplay from here. Although no one plays the gameplay after registering an account, the number of bets is increasing.
I don't have an account there, and I can not check this information. Just my thinking about stats.

Even if you don't have an account there, you can still see what kind of bets are being made and how many people are staying at the Betkin casino. You can see this if you visit the Betkin site.