Yes, it is possible to indicate the “year” unit using 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10; for example: <domain:period unit="y">1</domain:period>?
Updated 11 Apr, 2020
The Swedish Internet Foundation is an independent, business-driven and public-benefit organization. We work for an internet that contributes positively to people and society. We are responsible for the internet's Swedish top-level domain .se and manages the operation and administration of the top-level domain .nu. The revenue from our business finances a number of initiatives in order to enable people to use the internet in the best way, and to stimulate the sharing of knowledge and innovation with a focus on the internet.