condition	mean	min	max
4 h after light	4.1026	4.07434	4.13363
8 h after light	4.071526666666667	3.9469800000000004	4.3196
12 h after light	4.0937633333333325	4.01235	4.234319999999999
4 h after dark	4.13395	4.07295	4.21349
8 h after dark	4.14538	4.07913	4.26534
12 h after dark	4.059573333333334	3.91974	4.232