condition	mean	min	max
4 h after light	8.7743185	8.279646	9.268991
8 h after light	8.02295	7.795723	8.250177
12 h after light	8.452617499999999	8.105252	8.799983
4 h after dark	8.650814	8.573861	8.727767
8 h after dark	8.307456	8.250177	8.364735
12 h after dark	7.416927	7.416927	7.416927