condition	mean	min	max
4 h after light	7.218505	5.86603	8.57098
8 h after light	6.63378	5.01379	8.25377
12 h after light	6.543704999999999	6.00721	7.0802
4 h after dark	10.74542	9.78294	11.7079
8 h after dark	12.06175	11.1879	12.9356
12 h after dark	9.292895	6.82139	11.7644