Hi Nikita, Thank you for replying to me.
I’ve got a list that contains the date someone was discharged from a ward and the ward name. I’m trying to display the number of discharges per month but show the different wards people were discharged from by stacking. So, for example, in May 2015 there were 2 discharges - one from Maple and one from Birch. This shows clearly but I just don’t understand why it insists in putting a 0 in between the two coloured areas.