Average of Amount per GL_ACCOUNT

Hello Experts,

Kindly guide me as to how we can calculate the average of the AMOUNT Measure for each GL_ACCOUNT.

GL_ACCOUNT     Amount

001                         200    

001                         300

001                         400

002                         150

002                         250

002                         250

002                         100

OUTPUT

GL_ACCOUNT     AMOUNT_AVG

001                              900/3=300

002                              750/4=187.5

Thanks,

L