Interesting WC chat on the radio the other day (talksport) they were discussing how at the start of the tournament we were getting 10-12 mins added on and games lasting over 100 mins in total. But since pretty much the end of the group games its gone pretty much back to normal. A minute or two at the end of the first half, possibly 4-5 at the end of the second to reflect most substitutions happen then.
I don't know who spoke, but they had a theory: they reckon TV people have had a word and said we can't have 55mins of football without advertising breaks (and the revenue it brings in). I think its a sound theory.
Ten mins injury time at the end of Netherlands v Argentina, so I was talking rubbish!