condition	mean	min	max
4 h after light	17.3527085	13.380878	21.324539
8 h after light	13.572039	12.273764	14.870314
12 h after light	13.228363	11.679104	14.777622
4 h after dark	12.9584415	12.593628	13.323255
8 h after dark	11.537719	11.188018	11.88742
12 h after dark	10.586879	10.586879	10.586879