70% is by most measures, pretty close to 66% (2/3)...
Outside countries like US, and similar economically level, Apple desktops will never be a big presence, unless they change their premium price policies.
On the same markets, hardly any normal person can buy GNU/Linux desktop/laptops on regular computer stores.
Their choices are between Windows, ChromeOS and Android tablets with detachable keyboards, which naturally makes most pick Windows regardless.