condition	mean	min	max
0 h after light	7.55753	7.03554	8.07952
4 h after light	2.83686	2.79754	2.87618
8 h after light	4.47536	4.36692	4.5838
4 h after dark	7.00805	6.9098	7.1063
8 h after dark	6.70554	6.25312	7.15796
12 h after dark	8.579455	6.70541	10.4535