condition	mean	min	max
0 h after light	6.50334	6.16684	6.83984
4 h after light	4.744215	4.49581	4.99262
8 h after light	4.50743	4.37316	4.6417
4 h after dark	6.059555	5.15016	6.96895
8 h after dark	6.909515	6.18206	7.63697
12 h after dark	5.96927	5.79095	6.14759