condition	mean	min	max
0 h after light	27.264	26.1754	28.3526
4 h after light	11.98625	11.5105	12.462
8 h after light	6.695495	6.60012	6.79087
4 h after dark	15.8749	10.9199	20.8299
8 h after dark	21.73335	18.0683	25.3984
12 h after dark	30.58305	20.6375	40.5286