condition	mean	min	max
0 h after light	8.006165	7.7951	8.21723
4 h after light	12.73365	12.4053	13.062
8 h after light	12.43815	11.4374	13.4389
4 h after dark	11.76605	11.6077	11.9244
8 h after dark	14.9164	13.4772	16.3556
12 h after dark	10.20685	7.5698	12.8439