condition	mean	min	max
4 h after light	7.5984300000000005	6.58472	8.61214
8 h after light	7.32419	6.30979	8.33859
12 h after light	8.067045	7.21164	8.92245
4 h after dark	9.778306666666666	9.18161	10.2631
8 h after dark	9.349326666666666	7.45862	11.3667
12 h after dark	7.51074	3.69089	9.50067