condition	mean	min	max
4 h after light	9.145495	8.58993	9.70106
8 h after light	46.05415	41.9134	50.1949
12 h after light	23.3052	22.5511	24.0593
4 h after dark	7.97994	7.4578	8.73469
8 h after dark	9.412136666666667	9.03313	9.94887
12 h after dark	7.055226666666667	5.23321	8.54873