I do not have the "midpoint value" option. I only have the color steps option. Hmmmm

Actually I found it. I was going into manage color from the side bar option vs. from the properties menu (three dots). I was able to do this. Thank you so much for the help!

This worked and was very easy to do. Thank you so much for helping me. For others who have this issue, I just copied the list of country codes and full names from this link: Country Codes and created a csv file to use to do the link.