condition	mean	min	max
4 h after light	17.29547	14.78139	20.30685
8 h after light	20.772973333333333	17.35594	24.40586
12 h after light	12.438419999999999	11.31334	14.631789999999999
16 h after light	14.987783333333333	10.327639999999999	20.865660000000002
4 h after dark	18.03060333333333	12.118319999999999	23.646060000000002
8 h after dark	18.484273333333334	13.632229999999998	25.34788