Thanks, but apparently they had country-specific version like so: https://web.archive.org/web/20220929163836/https://www.pwc.de/de/digitale-transformation/business-analytics/kuenstliche-intelligenz-sorgt-fuer-wachstumsschub.html
I was hoping to read the country-specific methodology but now that I think of it they probably just did a rule of three to get it.