condition	mean	min	max
4 h after light	5.63255	4.68438	6.58072
8 h after light	4.074845	3.8032	4.34649
12 h after light	6.24393	5.44534	7.04252
4 h after dark	7.28821	7.02897	7.54745
8 h after dark	7.470535	7.19058	7.75049
12 h after dark	7.3895	7.11814	7.66086