condition	mean	min	max
0 h after light	6.4369250000000005	6.13861	6.73524
4 h after light	5.97428	4.89951	7.04905
8 h after light	3.50802	2.67803	4.33801
4 h after dark	7.33764	6.1246	8.55068
8 h after dark	8.24218	7.58121	8.90315
12 h after dark	6.873760000000001	6.22768	7.51984