condition	mean	min	max
4 h after light	6.08629	5.58668	6.83161
8 h after light	5.983806666666667	5.68332	6.48059
12 h after light	5.68778	5.22596	6.08519
4 h after dark	6.583396666666667	6.15045	6.94298
8 h after dark	6.213663333333334	5.755780000000001	6.47126
12 h after dark	6.39097	6.00461	6.971710000000001