Eight girls in a club are comparing their weekly allowance. Jan and Sue each receive \(\$10\) a week. Lori and Tina each receive \(\$5\) a week. Julie, Christie and Faith each receive \(\$12\) a week. Cheryl does not get an allowance but her parents often buy her things as she needs them. What is the average amount of allowance given among these \(8\) girls?