condition	mean	min	max
0 h after light	8.455325	7.98939	8.92126
4 h after light	5.535195	5.41864	5.65175
8 h after light	6.921515	6.74633	7.0967
4 h after dark	8.78789	8.47972	9.09606
8 h after dark	7.19753	7.06667	7.32839
12 h after dark	7.640435	7.55631	7.72456