condition	mean	min	max
4 h after light	5.117073333333333	5.091419999999999	5.14358
8 h after light	5.25092	5.18259	5.3448
12 h after light	5.26127	5.17331	5.3285
4 h after dark	5.993503333333334	5.78742	6.3737
8 h after dark	6.297816666666667	6.2435599999999996	6.35616
12 h after dark	6.0756733333333335	6.04663	6.10647