Drugs Survey

The results to our drug survey is shown below:
The left chart depicts personal use - From left to right the responses are:
"I use/consume this regularly"
"I have tried this at least once"
"I havn't tried this"
"I don't even know what this is"
The right chart depicts other peoples' use - From left to right the responses are:
"I know someone that uses/consumes this regularly"
"I know someone who has tried this"
"I don't know anyone who has tried this"
"I don't even know what this is"