condition	mean	min	max
4 h after light	5.21075	4.25589	6.16561
8 h after light	6.2684	6.04791	6.48889
12 h after light	6.504475	5.68376	7.32519
4 h after dark	7.341480000000001	6.62178	8.06118
8 h after dark	6.06215	5.67521	6.44909
12 h after dark	5.77008	5.64497	5.89519