[swinog] IPv6 usage statistics for Switzerland

Has anyone been collecting data points related to service providers in Switzerland providing IPv6 services? I'm trying to pull together a slide on the growth of v6 services in the country.

Hence I'm looking for the following information (if available):

- First commercial v6 transit service (any carrier with a POP in CH) - First commercial v6 service to customers (enterprise or end user) - First commercial 6RD DSL service over BBCS - First commercial 6RD DSL service over unbundled copper - First commercial native v6 DSL service over BBCS - First commercial native v6 DSL service over unbundled copper

If anyone also has a data on the usage of v6 (vs. v4) in Switzerland I would appreciate it.

Thanks, Thomas