condition	mean	min	max
0 h after light	15.3418	14.7656	15.918
4 h after light	10.29362	9.13284	11.4544
8 h after light	7.619815	7.40923	7.8304
4 h after dark	9.01906	7.88712	10.151
8 h after dark	13.4946	12.7889	14.2003
12 h after dark	13.681049999999999	13.6634	13.6987