
Not under you PER se...
The Big Bang Theory Season 2, Episode 19

Now, if you assume 15 tampons PER cycle
in a 28-day cycle...
The Big Bang Theory Season 1, Episode 4

Well, no, not PER se, but...
The Big Bang Theory Season 4, Episode 1

When I can work,
I make $43,700 PER year.
Breaking Bad Season 2, Episode 3

The key is the number
of hands PER hour.
Breaking Bad Season 4, Episode 4