Steam released a survey that shows that Windows 8 has grown and now reaching 9% of users.
The following table shows the use of OS:
On C# Corner, we are seeing Windows 8 usages are growing. In Dec 12 month, Windows 8 users (among all Windows users) were 7% but last month (Jan 13), almost 12% of the Windows users are using Windows 8.
Note: These users on C# Corner do not include non-Windows operating systems.