Hi, maybe this will work:
Make sure you have all the categories (Yes, No, Missing, create dummies for all) in your data for every chart.
Assign a counter variable and set it to missing for the dummies and to 1 for all real answers. Use this variable one for counting the answers.
Make sure the sorting is the same for all charts and that the color order are the same.
Hopefully this will make it work for you!
//Fredrik