Tuvalu makes "several million dollars a year" from .tv domains [1], and their total GDP is only ~$35M, so at least in Tuvalu's case it's in the range of 10% of

Tuvalu makes "several million dollars a year" from .tv domains [1], and their total GDP is only ~$35M, so at least in Tuvalu's case it's in the range of 10% of their GDP. [1]: http://www.bbc.com/news/world-asia-pacific-16340072 http://www.bbc.com/news/world-asia-pacific-16340072