condition	mean	min	max
4 h after light	10.677815	9.47943	11.8762
8 h after light	7.135035	6.58675	7.68332
12 h after light	5.81739	5.78314	5.85164
4 h after dark	8.092195	7.92182	8.26257
8 h after dark	6.8963350000000005	6.53444	7.25823
12 h after dark	8.54416	7.75254	9.33578