condition	mean	min	max
4 h after light	4.09694	4.02629	4.162030000000001
8 h after light	4.163513333333333	4.056	4.221430000000001
12 h after light	4.320093333333333	4.16464	4.62206
4 h after dark	4.222276666666667	3.9849699999999997	4.54614
8 h after dark	4.21174	4.07929	4.39308
12 h after dark	4.186343333333333	4.06612	4.37512