condition	mean	min	max
4 h after light	9.992705	9.14431	10.8411
8 h after light	7.50314	7.26477	7.74151
12 h after light	7.613455	7.22108	8.00583
4 h after dark	8.326263333333333	7.70894	9.36098
8 h after dark	11.838966666666668	11.2048	12.6392
12 h after dark	9.862036666666667	8.83683	10.8073