PIPE DATA SIZES OD OR ID?

Good morning,

I want to ask if the sizes available in the pipe data window are Out Diameter(OD) or Inside Diameter(ID).
I have existing main pipe sizes in one of my projects , HDPE and need to reflect the sizes in the pipe Data:


OD 90, 110, 140, 160, 200, 315MM, HDPE

Thank you
Nibal