Cabin pressure profile?

From: (Clemens Emmanuel Tillier)
Date:         21 Sep 93 22:47:37 PDT
Organization: Princeton University
Followups:    1 2
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This is a somewhat vague question, but here goes: 

How does the cabin pressure in a 'typical' airliner vary with
altitude? Of course it decreases, but how? Is there a proportional
decrease as you go up or does it follow atmospheric pressure to a
certain altitude and stay at this final pressure as you go higher?

Even more basic: what is a 'typical' cabin pressure at say 35,000
feet, and to what real altitude does it correspond?

Clem Tillier