condition	mean	min	max
0 h after light	7.599915	6.97171	8.22812
4 h after light	4.370485	4.19192	4.54905
8 h after light	6.45847	6.18394	6.733
4 h after dark	7.376635	6.63445	8.11882
8 h after dark	5.798265000000001	5.61345	5.98308
12 h after dark	6.294145	5.44636	7.14193