Create a stacked bar graph using totals from an expression

[#1]

Hi

I am splitting data by ward and performing a range of calculations which assign each ward to green amber or red. I now want to create a stacked bar graph showing only the total number of wards in each category.

I can easily knock this up in excel using just the totals (see screenshot) but I want a single graph in Qlikview to do this.

Help?

[Gysbert_Wassenaar]

Use month and  a calculated dimension with "a range of calculations which assign each ward to green amber or red" as dimensions and something like count(wards) as expression.