The fastest country on the list, Denmark, has almost no competition in the sector: https://en.wikipedia.org/wiki/Internet_in_Denmark. And it’s been a model of deregulation: https://reason.com/2017/10/24/how-denmark-has-overtaken-the-...
> Regulators around the world took notice and strove to emulate the success of the U.S. approach. Denmark in particular styled its own telecommunications regulations on the U.S. model, slashing its chief telecom regulator altogether and assigning small regulatory functions to other departments.
Denmark is basically the situation where you have a “benevolent former monopoly,” like Verizon here in the mid Atlantic US.