Maslow's Hierarchy of Needs

Maslow states that humans function based on a predictable scale of basic needs.  Each of these needs must be met in a certain order to experience true happiness.  This hierarchy shows the necessity of each level both in vertical arrangement and width of level.  See below:

Basic Needs include items such as the ability to breathe, eat, drink, and perform basic biological functions.  Safety Needs include freedom from terror, threat, and oppression, Psychological Needs refer to relationships with family, friends, and lovers, Self-Actualization refers to a persons ability to find pleasure through the application of their talents and interests.  Peak Experiences are those experiences where a person feels 100% satisfaction with life.

As we read through our novel, where does Elie fall in Maslow's hierarchy?  How does the level we place him on affect his humanity?  When he is finally liberated at Buchenwald, where are he and the other prisoners on the hierarchy?