To me the term Positivity Rate means the following.
For each group, they calculate the percentage of people that take the test that end up with a positive result.
The number of people in the group isn't important, because it is a percentage of the total for that group.
In which case, if the vaccine were saline, every group should theoretically have the same positivity rate.
However, there could be some effects such as the vaccine causing false-positives, or the unvaccinated testing without symptoms or more frequently.
All that aside, however, this plainly shows that the vaccines are ineffective. I think it also strongly suggests that the vaccines make you more likely to be infected, although doesn't prove it.
There's a piece of the puzzle missing, so this doesn't tell us much. We need to know what percentage of the population falls into those categories.
If 9.6% of the population is vaccine free, 14.5% had one dose, etc, then it would be the same as saline.
To me the term Positivity Rate means the following.
For each group, they calculate the percentage of people that take the test that end up with a positive result.
The number of people in the group isn't important, because it is a percentage of the total for that group.
In which case, if the vaccine were saline, every group should theoretically have the same positivity rate.
However, there could be some effects such as the vaccine causing false-positives, or the unvaccinated testing without symptoms or more frequently.
All that aside, however, this plainly shows that the vaccines are ineffective. I think it also strongly suggests that the vaccines make you more likely to be infected, although doesn't prove it.