condition	mean	min	max
4 h after light	8.523518	7.631639	9.415397
8 h after light	7.5880595	7.17495	8.001169
12 h after light	7.604143499999999	7.502851	7.705436
4 h after dark	7.214569	6.773883	7.655255
8 h after dark	7.5049265	7.459437	7.550416
12 h after dark	8.486616	8.486616	8.486616