condition	mean	min	max
4 h after light	9.61079	9.03388	10.1877
8 h after light	6.312965	6.21445	6.41148
12 h after light	7.541615	6.93638	8.14685
4 h after dark	9.13812	8.42764	9.53226
8 h after dark	10.152486666666666	9.72276	10.6164
12 h after dark	10.580043333333334	8.98483	11.9637