I have a relatively loose range for Xbone and X360 LTDs in my chart that I'll post after all 3 have posted their shipments.
Xbone - 10.9 to 13.8M
X360 - 84.3 to 86.7M
Xbone is probably on the high end of that spectrum (~13M) and X360 on the low end (~85M). Let me know if something looks off though