condition	mean	min	max
4 h after light	1552.5	1552.5	1552.5
8 h after light	1598.45	1364.2	1832.7
12 h after light	1339.6	1025.8	1653.4
4 h after dark	1201.65	1106.4	1296.9
8 h after dark	992.65	818.3	1167.0
12 h after dark	902.15	882.4	921.9