Effect of Holiday Season on Affiliate Conversion Rate?

So its holiday season and I'm noticing a huge drop in my conversion rates. My CR from Dec 8-16 was not even half of what I had during Dec 1 to 9.

What about you guys? How is your traffic/CR affected?

PS: I'm talking about products unrelated to Christmas/holidays. Of course, you're gonna have a better CR if you're promoting Christmas related products.