condition	mean	min	max
4 h after light	4.63948	4.557840000000001	4.7468699999999995
8 h after light	4.415793333333333	4.363980000000001	4.504580000000001
12 h after light	4.416476666666667	4.33666	4.49734
4 h after dark	4.47872	4.39067	4.53021
8 h after dark	4.564456666666667	4.45521	4.72767
12 h after dark	4.42636	4.29709	4.61216