condition	mean	min	max
4 h after light	27.9344	23.9987	31.8701
8 h after light	26.59115	26.0409	27.1414
12 h after light	15.8818	13.5976	18.166
4 h after dark	12.44635	11.9418	12.9509
8 h after dark	13.040299999999998	12.1741	13.9065
12 h after dark	19.5342	19.3456	19.7228