condition	mean	min	max
4 h after light	17.5573325	14.598415	20.51625
8 h after light	16.506903	15.206551	17.807255
12 h after light	13.2520165	11.486856	15.017177
4 h after dark	15.595837	13.987826	17.203848
8 h after dark	17.9394035	14.272353	21.606454
12 h after dark	13.066433	13.066433	13.066433