GMS Christmas event in 2012

So EMS just got the event with these boxes http://i.kiwi.io/1b63ff05fcc35820ffaefc641ff40217.png & this http://i.kiwi.io/1a3f91fead97497b1a96d6104ad339f6.png sock that you can level as an IMP.

However our drop tables seem to be really weird. After opening 200 red boxes I ended up with a bunch of crap along with 3 1.5x exp coupons, but the next 800 boxes gave me 0 1.5x coupons.
So this leads me to believe that Im either having terrible luck with this, or theres a limit per day.

Did this event have any limits to them last year on GMS (mainly 1.5x drop/exp coupons)? I cant seem to get more than 3 1.5x exp coupons.

Heres EMS event post with available drops: http://en.maplestory.nexoneu.com/Map...=view&uid=2166