condition	mean	min	max
4 h after light	4.45343	4.3849800000000005	4.55871
8 h after light	4.436936666666667	4.38612	4.50673
12 h after light	4.43399	4.29014	4.5789599999999995
4 h after dark	4.49062	4.42892	4.58853
8 h after dark	4.417103333333333	4.33237	4.47624
12 h after dark	4.456826666666666	4.355919999999999	4.587269999999999