condition	mean	min	max
4 h after light	6.278736666666667	6.10712	6.4953
8 h after light	6.48644	6.176740000000001	6.9619100000000005
12 h after light	6.69962	6.50269	6.96715
4 h after dark	5.98568	5.6799	6.16845
8 h after dark	5.796783333333333	5.62787	5.96206
12 h after dark	5.680696666666666	5.50307	5.7897099999999995