Given the following work data set containing Treatment-Emergent Adverse Events: `` subject achodeyz aedecod aesev 001 NERVOUS SYSTEM DISORDERS DIZZINESS 1 001 NERVOUS SYSTEM DISORDERS HEADACHE 2 001…

Given the following work data set containing Treatment-Emergent Adverse Events:

subject achodeyz aedecod aesev
001 NERVOUS SYSTEM DISORDERS DIZZINESS 1
001 NERVOUS SYSTEM DISORDERS HEADACHE 2
001 NERVOUS SYSTEM DISORDERS LETHARGY 2
001 NERVOUS SYSTEM DISORDERS DIZZINESS 2
001 NERVOUS SYSTEM DISORDERS LETHARGY 3
002 NERVOUS SYSTEM DISORDERS DIZZINESS 2
002 NERVOUS SYSTEM DISORDERS DIZZINESS 3
003 NERVOUS SYSTEM DISORDERS HEADACHE 1
003 NERVOUS SYSTEM DISORDERS HEADACHE 2
004 NERVOUS SYSTEM DISORDERS LETHARGY 2

AESEV (Severity): 1 = Mild, 2 = Moderate, 3 = Severe And a By Severity table:

Nervous System Disorders
Mild n (p)
Moderate n (p)
Severe x (p)

In the space below, enter the numeric value of x for "Severe" events under HEADACHE.