condition	mean	min	max
4 h after light	8.881247	8.881247	8.881247
8 h after light	8.707476	8.533705	8.881247
12 h after light	9.001846	8.881247	9.122445
4 h after dark	8.9258945	8.643926	9.207863
8 h after dark	8.3536485	8.126557	8.58074
12 h after dark	9.877515	9.877515	9.877515