condition	mean	min	max
4 h after light	7.900693333333333	7.882789999999999	7.921819999999999
8 h after light	8.209993333333333	7.89876	8.56338
12 h after light	8.26025	7.986789999999999	8.43052
4 h after dark	7.710773333333333	7.46674	7.97002
8 h after dark	7.65319	7.5861600000000005	7.75595
12 h after dark	7.701586666666667	7.63271	7.786010000000001