condition	mean	min	max
4 h after light	4.020325	3.46983	4.57082
8 h after light	3.347245	3.08348	3.61101
12 h after light	4.81234	4.71132	4.91336
4 h after dark	8.717115	7.08603	10.3482
8 h after dark	9.398165	8.9952	9.80113
12 h after dark	7.143545	6.70559	7.5815