condition	mean	min	max
4 h after light	13.23365	11.3634	15.1039
8 h after light	9.917605	9.43171	10.4035
12 h after light	12.28065	12.2304	12.3309
4 h after dark	15.481	15.1578	15.678
8 h after dark	19.0742	18.7343	19.3059
12 h after dark	15.559833333333334	14.8	16.3612