It's a bit awkward/kludgy, but you're probably going to have to add some 'missing' values to your data ... each of the 50 states will have to have each of the 6 subtypes (with a sas 'missing' value for the pcr_count). -- There might be another way, but this is the technique I usually use.
This should work ok, since you're doing a type=sum bar chart (whereas if you were doing a frequency count bar chart, you might have to be a little trickier).
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