condition	mean	min	max
4 h after light	7.7993375	7.77505	7.823625
8 h after light	8.137521	8.099695	8.175347
12 h after light	8.299185999999999	8.184159	8.414213
4 h after dark	7.7397445000000005	7.646142	7.833347
8 h after dark	7.5014579999999995	7.481386	7.52153
12 h after dark	7.121005	7.121005	7.121005