Here are the CDC groups:

1a: Frontline healthcare workers and long term care facility residents. Best I can determine this group has just over 21 million individuals, some of whom have declined the chance to obtain their shots.
1b: Frontline essential workers and individuals 75 years of age and older. Estimated numbers of these groups are:
Frontline essential workers: 30 million (per https://www.aarp.org/work/working-at-50-plus/info-2020/covid-vaccine-essential-workers.html}
Individuals over 75 years old: 13 million

1c: Other essential workers, persons 65–74 years of age, and individuals 16–64 years of age with underlying medical conditions

Other essential workers: 57 million
Individuals 65–74 years old: 18 million

I personally think essential workers should get priority over retired folks like me. Therefore, I could be well behind; I count 130 million people ahead of the 65–74 group.

The complicating factor is that some eligible people decline the vaccine for whatever reason. No hard data is available on the percentage of declines. See https://wlos.com/news/local/how-many-western-north-carolina-hospital-workers-are-declining-covid-19-vaccine

Anecdotally, I know that in my good buddy’s hospital about ⅓rd declined. Of the ⅔rds that did get the first dose, there were many who had initially stated they would not take the vaccine. I personally think that if you say no during the initial survey to determine how many doses to request, you should go to the back of the line.

Sorry for the long background. What do you think?