Oil Pressure Guage movement range?

I seem to remember my oil pressure guage moving almost the whole sweep during driving.. had timing and all belts done, now its at like zero when i idle, and i rarely ever see it go past the first tick, but it does respond and move correctly to the rpms.. My question is for any other NT/T owners, what is the general range for your oil pressure guage while driving? Oil is topped up on dip stick -Thanks!