condition	mean	min	max
4 h after light	6.493415	5.56535	7.42148
8 h after light	3.99728	3.6581	4.33646
12 h after light	4.7946349999999995	4.47836	5.11091
4 h after dark	5.35526	5.06236	5.68374
8 h after dark	5.843866666666667	5.70108	5.97003
12 h after dark	6.10158	5.79691	6.70695