I have ten dummy variables [Yes/No]. I can't convert them to one categorical variable as people in this survey can tick yes on more than one of these dummies.

I need to represent the percentage of yes answers for all these variables in one stacked bar graph. The below is my attempt but no idea how to even get a single variable represented (keep getting error that x needs to be defnied) not to mention multiple.

I've picked the stacked bar graph idea from