condition	mean	min	max
0 h after light	4.012925	3.79958	4.22627
4 h after light	3.40844	2.65001	4.16687
8 h after light	3.032905	2.2062	3.85961
4 h after dark	5.8128	5.32146	6.30414
8 h after dark	4.717575	4.26908	5.16607
12 h after dark	4.16402	3.24661	5.08143