Cropping Tool - CS6

Is there a way to input your cropping measurements / aspects, and have them stay in place until you change them ?

In other words, it seems that every time I open a new picture, or application of Photoshop and I reach for the Crop Tool, it has reset itself to - Unconstrained, then I have to go and select or input what I want ( which is always the same thing ).

I would like to type in the measurements I want, and have that stay there as the default until I input something different ?

Why does this not seem possible ?

This is certainly the way it worked in CS5, or until Adobe "Improved" it.

Thanks for any and all help,

Sterne