Scenario, i have a five years set of data in a table that is display in monthly.
Jan - 2008
Feb - 2008
.
.
.
Dec - 2008
Jan - 2009
.
.
.
Mar - 2013
I need to create an accumulative column of values in year basic. meaning that once it hit the december of a particular year, it will reset back to 0 for jan - 2009
