condition	mean	min	max
4 h after light	4.855895	4.42529	5.2865
8 h after light	6.198865	6.01526	6.38247
12 h after light	6.135895	6.00779	6.264
4 h after dark	7.25495	6.76543	7.74447
8 h after dark	6.616225	6.43416	6.79829
12 h after dark	6.395235	6.01725	6.77322