condition	mean	min	max
4 h after light	11.5	11.5	11.5
8 h after light	49.2	16.9	81.5
12 h after light	81.5	60.4	102.6
4 h after dark	29.85	9.0	50.7
8 h after dark	28.5	24.5	32.5
12 h after dark	74.65	64.9	84.4