condition	mean	min	max
4 h after light	1210.4	1210.4	1210.4
8 h after light	1043.8	1037.3	1050.3
12 h after light	876.5	866.3	886.7
4 h after dark	815.8	733.6	898.0
8 h after dark	1021.45	818.0	1224.9
12 h after dark	1382.75	1166.5	1599.0