Here is the ordered list of students according to last name.

Name: Abzug
Age: 21
GPA: 82.15

Name: Adams
Age: 75
GPA: 98.50

Name: Bernstein
Age: 900
GPA: 38.23

Name: Lane 
Age: 35
GPA: 87.60

Name: Mata-Toledo
Age: 49
GPA: 78.20

Name: Norton
Age: 20
GPA: 71.52

Name: Tjaden
Age: 3
GPA: 75.78