condition	mean	min	max
0 h after light	7.963875	7.51436	8.41339
4 h after light	2.097425	1.68895	2.5059
8 h after light	3.329605	3.11585	3.54336
4 h after dark	6.76823	6.21067	7.32579
8 h after dark	5.107475	4.66442	5.55053
12 h after dark	5.629295	4.85789	6.4007