It's most likely to be diagnosed between the ages of 30 to 50, and older people are also being diagnosed.
Most girls with the condition are diagnosed between ages 13 and 15.
And it is usually diagnosed between the ages of 40 and 70.
The study involved nearly 22,000 women over age 65 whose breast cancers were diagnosed between 1988 and 1993.
These women also were twice as likely to die during the 10-year period when compared to those who were diagnosed between ages 45 and 49.
The American Cancer Society's latest data is based on people who were diagnosed between 1998 and 2000.
(In adulthood it's usually diagnosed between ages 40 to 60).
Germinomas are most commonly diagnosed between the ages of 10 and 21.
The disease is diagnosed most often in early adulthood, between the ages of 20 and 35.
Torsion dystonia is usually diagnosed between the ages of 6 and 16.