condition	mean	min	max
4 h after light	5.998363333333334	5.75892	6.341080000000001
8 h after light	8.72072	8.51566	9.084019999999999
12 h after light	8.616723333333333	8.22283	8.89817
4 h after dark	6.427506666666667	6.33737	6.50408
8 h after dark	6.74486	6.57453	7.0019100000000005
12 h after dark	5.974433333333333	5.76007	6.08777