condition	mean	min	max
4 h after light	13.265699999999999	12.7681	13.7633
8 h after light	2.8107100000000003	2.70284	2.91858
12 h after light	3.054655	1.19179	4.91752
4 h after dark	2.3212266666666665	1.44166	3.17886
8 h after dark	17.7352	15.3219	19.6734
12 h after dark	11.715966666666667	10.7395	12.4657