Ok.
I have done a 911.
I get 2 files:
911 part 1 - 1,95 gb
911 part 2 - 1,02 gb
But i then normal backup and restore, is says that i have approximately 5Gb for the first backup (desktop way) method and for the 2. approximately 7Gb.
I am really not sure, i get all our files (doc, drawing and so on)