condition	mean	min	max
4 h after light	8.6342865	8.387326	8.881247
8 h after light	7.719213	7.0511	8.387326
12 h after light	8.216524	8.045722	8.387326
4 h after dark	8.259788499999999	7.704922	8.814655
8 h after dark	8.581443499999999	8.047793	9.115094
12 h after dark	7.867544	7.867544	7.867544