Not voted. It is a count of how many absentee ballots were mailed out. Almost none of them have been returned yet. (See the above link.)
However, it is a pretty good early indicator that turnout is going to favor Trump.
I read it...saw the 2014 year listed and wonder if it is the vote total from 2 years ago. ( last available stat?)
Therefor it is not updated for 2016 since the ballots have not been mailed and are still being requested.
In my county the Military ballots must all be re-printed due to a candidate who dropped out! Yesterdays news!