Malta’s .mt grew by 146% in the past year, mirrors the country’s economic success. Exceeding 25.1 million domain names the South Pacific Island Tokelau’s .tk continues to reign supreme as the world’s largest country code domain name, driven by its free registration policy.
https://www.nominet.uk/the-shifting-world-of-country-codes/
origin - https://www.pipiscrew.com/?p=18208 world-map-of-domains