condition	mean	min	max
4 h after light	7.139833333333334	6.98475	7.25904
8 h after light	7.2395	7.14637	7.3999
12 h after light	7.231233333333333	7.11848	7.416869999999999
4 h after dark	7.63772	7.41816	7.94326
8 h after dark	7.768526666666667	7.666010000000001	7.9145199999999996
12 h after dark	7.78766	7.46921	7.961119999999999