condition	mean	min	max
4 h after light	9465.9	9465.9	9465.9
8 h after light	9769.0	9752.9	9785.1
12 h after light	9411.95	9263.8	9560.1
4 h after dark	8473.6	7672.8	9274.4
8 h after dark	8068.75	7154.6	8982.9
12 h after dark	8365.5	8277.3	8453.7