Let me go bit in explanation.
USA : MNIK had record opening followed by not so great trending. In Christmas release opening would have been better & drops would have been bit less which would have helped it going $5-5.25mn nothing more.
UK : Well it already ran at potential I mean its footfalk are still highest in last 10 years in UK. At most it would have earn $500k more due to Xmas
Gulf : Same as UK numbers are 25% higher than last highest grosser which itself were 20% higher than highest grosser before 3 Idiots. Say it would have done $200k more to hit $4mn mark. In UAE it was 6th highest grosser just behind Avatar, 2012, The Dark Knight, Kung Fu Panda & Twilight. What else.
Rest market it released in its 1st Phase did $5mn they would have added $500k as almoar all of them were already at all time high.
So Xmas release would have been around $19mn at place of $16.75mn it did.