How are the réponses organized in the "Answers I've Given" section of our profiles?

I thought they were listed in chronological order, but then I noticed that a récent answer I gave is on the front page of my réponses I've Given, ahead of many older answers. So what gives? Does anyone know what actually determines the order of the réponses in that section of our profiles? I don't NEED to know, of course... but I'm very curious! :)