condition	mean	min	max
4 h after light	8.383315	8.34885	8.41778
8 h after light	6.63372	6.54603	6.72141
12 h after light	6.450055	4.7721	8.12801
4 h after dark	12.76775	10.2788	15.2567
8 h after dark	8.51319	8.33028	8.6961
12 h after dark	9.912015	8.50383	11.3202