Tag/note chart and datas count

Hello,
I’m looking for a way to combine a value (number of specific tags in a research) inside a “mermaid” graph (Auto Update). Do you know a quick and easy way for a graphics freak like me to use? xD

For exemple: How I Know

"ValueSubject1": **ValueResearch1**
"ValueSubject2": **ValueResearch2**
etc

Thank you!