condition	mean	min	max
4 h after light	56.5781	44.351	68.8052
8 h after light	41.63695	40.4961	42.7778
12 h after light	10.535685	9.75237	11.319
4 h after dark	2.29753	2.0074	2.58766
8 h after dark	2.316445	2.26823	2.36466
12 h after dark	7.129615	6.44918	7.81005