condition	mean	min	max
0 h after light	3.468605	2.84342	4.09379
4 h after light	7.5105	6.84087	8.18013
8 h after light	16.66685	15.891	17.4427
4 h after dark	16.083750000000002	14.2623	17.9052
8 h after dark	9.76538	8.40276	11.128
12 h after dark	5.481115	3.87025	7.09198