condition	mean	min	max
0 h after light	8.165925	8.0255	8.30635
4 h after light	9.0486	8.68847	9.40873
8 h after light	7.4162300000000005	6.78146	8.051
4 h after dark	9.04617	8.61341	9.47893
8 h after dark	8.174365	7.93156	8.41717
12 h after dark	8.235495	7.32672	9.14427