Which countries is OKX banned in?

Could you please provide some clarity on the matter of OKX's availability? I'm interested in understanding which specific countries have banned or restricted access to OKX? Could you enumerate these countries for me, and possibly offer any insights into why these bans or restrictions have been imposed? I'm curious to know if there are any patterns or trends in the types of countries that have taken such measures against OKX. Thank you for your assistance in clarifying this matter.