condition	mean	min	max
4 h after light	5.238396666666667	2.81768	6.64111
8 h after light	3.756608	0.637244	6.26284
12 h after light	6.44187	3.33081	10.0294
4 h after dark	11.38373	8.59789	15.4175
8 h after dark	21.5257	16.9138	23.9714
12 h after dark	19.88713333333333	15.66	25.8757