Hi

Data
----------------------------------------------------
column1 column2 column3
1/1/1980 1000 collected
4/1/1981 -500 entered
6/2/1980 200 collected
4/2/1983 -1500 entered
7/2/1982 2100 collected
9/5/1980 -5000 entered
6/3/1980 2000 collected
-----------------------------------------------------
I want to list running balances like

1980 1981 1982
Jan (amount) (amount) (amount)
Feb (amount) (amount) (amount)
March (amount) (amount) (amount)
April (amount) (amount) (amount)

Thx.