Some more details:
* total leave per year 22 days
* if you request 9 days or less of vacation you'll get 2 wraparound days on each side
* if you request more than 9 days of vacation you'll get 3 wraparound days on each side
Unfortunately not all the rules are so great. I wasn't able to get my vacation this year so far, I will have to wait until october or later
