condition	mean	min	max
4 h after light	8.494395	8.24098	8.74781
8 h after light	7.017564999999999	6.89443	7.1407
12 h after light	8.61846	7.99707	9.23985
4 h after dark	9.35494	8.71047	9.99941
8 h after dark	9.46724	9.18598	9.7485
12 h after dark	9.25852	9.21203	9.30501