Mentions Arizona and Nevada, along with Florida, New Mexico, Pennsylvania and West Virginia, but doesn’t list the other 9 states that would bring the total to 17.
The list was compiled by the same folks who compiled the list of all our 57 states. They have a habit of skipping a few.
I had to click on the link to the study to find the others.
The states listed in the study (from top to bottom on their weird graph) re:
NH, MS, AR, AZ, MA, DE, NV, ME, AL, NJ, CT, NM, CA, WV, RI, PA, FL