condition	mean	min	max
4 h after light	6.49097	6.01792	6.96402
8 h after light	4.898095	4.85244	4.94375
12 h after light	5.04358	4.24148	5.84568
4 h after dark	7.1353100000000005	6.77588	7.33175
8 h after dark	8.87159	8.22172	9.95191
12 h after dark	5.386043333333333	3.35483	6.91631