Yes, it links to the data. I recommend you amend the newsletter to include the source as well, if you want people to take your publication seriously. (I know it's just a simple 2D line graph of the data, but that's perfectly ok for a professional visualization -- what's not ok is not linking to the data directly if available.)

Your title, or something, needs to clarify that it's either using CPI or adjusted for inflation -- either works. BLS also publishes data on "average price" in USD, which is not adjusted, so what you have is ambiguous at best -- though my initial assumption was that your graph wasn't adjusted, because a lot of times data that's not adjusted does not explicitly specify that it's "not adjusted" -- see e.g. any graph or dataset from IMF. So that really needs to be specified.