Which one of these would you say is correct?

Argument for "is": In English "data" is treated as an uncountable noun.

Argument for "are": In Latin, "data" is the plural of "datum".

Here are some data
14.9%
Here is some data
85.1%
Poll ended at .

@marginalia depends if you’re talking about the dats as a whole, or you’re in the data and talking about it there.

Sort of like a folder full of papers:
The folder contains the data, vs
the papers contain the data.