condition	mean	min	max
4 h after light	6.968285	5.73951	8.19706
8 h after light	6.151125	6.11534	6.18691
12 h after light	6.39719	6.24812	6.54626
4 h after dark	7.326746666666667	6.96915	7.622
8 h after dark	8.599793333333333	8.43769	8.92066
12 h after dark	7.013563333333333	6.78562	7.30785