Starting in iOS7, there is additional space at the top of my UITableView's which have a style UITableViewStyleGrouped.

Here is an example:

The tableview starts at the first arrow, there are 35 pixels of unexplained padding, then the green header is a UIView returned by viewForHeaderInSection (where the section is 0).

Can anyone explain where this 35-pixel amount is coming from and how I can get rid of it without switching to UITableViewStylePlain?

Update (Answer):

In iOS 11 and later:

tableView.contentInsetAdjustmentBehavior = .never