condition	mean	min	max
4 h after light	5.88667	5.79266	5.97509
8 h after light	5.753656666666666	5.55835	5.88026
12 h after light	5.705943333333333	5.40826	5.95177
4 h after dark	5.64794	5.42393	5.82017
8 h after dark	5.775126666666666	5.508769999999999	5.93687
12 h after dark	5.84195	5.65942	5.98043