This question: Would ELU like to start a trial of only need 3 votes to close/reopen a question? mentions that the review queue is too long, approximately 160 posts. Since reading that, I have upped the number of posts I have reviewed from zero to 60 (but it took me longer than 10 seconds!).
It now looks to me as if there are 137 posts that need reviewing (some new ones have been flagged). However, the ones I have voted on are no longer included in the total shown to me. Not all of the ones I voted on had reached the threshold, so were still waiting for other users to vote on them.
How can I see how many posts are really waiting to be reviewed?