condition	mean	min	max
4 h after light	5.1967	5.093380000000001	5.31361
8 h after light	5.242076666666667	5.06064	5.45714
12 h after light	5.168956666666667	4.9198900000000005	5.3547400000000005
4 h after dark	5.276879999999999	5.076309999999999	5.53346
8 h after dark	5.23674	5.05014	5.551880000000001
12 h after dark	5.064713333333334	4.99027	5.19808