CRV wheel size

Does any one know what the factory offset and flange size is for the 2005
CRV with 16 x 6.5 wheels?
I have steel and am going to get the alloys but I want to keep the exact
wheel size...seeing all different offsets at all the wheel web sites (40-55)
and want only the exact size
300 miles and very impressed with the power of the VTEC 4, a very nice
vehicle, my first Honda.

Thanks
Tom