[Leo Farnsworth]

Reading the article it appears that it's a weekly tally.

So, 9,000,000 divided by five nights = 2,200,000 per day.

Right in the nightly range of Fox.

I may be mistaken...
“...“Nightly” has now delivered over 9 million total viewers for 17 consecutive weeks...”

[InterceptPoint]

You may be right.