condition	mean	min	max
4 h after light	7.538029999999999	6.71549	8.36057
8 h after light	9.49446	9.34271	9.64621
12 h after light	9.757100000000001	8.7873	10.7269
4 h after dark	12.662366666666667	12.4624	13.0429
8 h after dark	10.94914	9.47212	12.5207
12 h after dark	7.844896666666666	7.08608	9.19709