condition	mean	min	max
4 h after light	19.38775	18.1233	20.6522
8 h after light	13.8692	13.2845	14.4539
12 h after light	12.533100000000001	12.2171	12.8491
4 h after dark	12.773933333333334	12.2426	13.0689
8 h after dark	19.0574	18.2804	20.0383
12 h after dark	18.4174	17.3109	19.8124