condition	mean	min	max
4 h after light	11.886256	11.855716	11.916796
8 h after light	11.2787425	11.249035	11.30845
12 h after light	11.6758995	11.496083	11.855716
4 h after dark	11.405063	11.230311	11.579815
8 h after dark	13.225589	11.855716	14.595462
12 h after dark	12.685265	12.685265	12.685265