condition	mean	min	max
4 h after light	5.223125	4.31123	6.13502
8 h after light	4.792255	4.6865	4.89801
12 h after light	6.058675	6.03262	6.08473
4 h after dark	7.528473333333333	7.14111	7.99958
8 h after dark	7.15467	6.94522	7.40071
12 h after dark	5.270253333333333	4.6591	5.64312