condition	mean	min	max
4 h after light	11.145473333333333	9.0444	14.5416
8 h after light	12.38486	4.30518	19.7213
12 h after light	15.66387	9.81811	23.7806
4 h after dark	20.783366666666666	11.9883	27.1841
8 h after dark	20.4774	13.5664	24.3863
12 h after dark	14.6852	13.9884	15.038