condition	mean	min	max
4 h after light	9.01279	8.91703	9.0801
8 h after light	8.415486666666666	8.2311	8.61309
12 h after light	8.214333333333332	7.978330000000001	8.3584
4 h after dark	6.933153333333333	6.80518	7.1344199999999995
8 h after dark	7.830463333333334	7.5846800000000005	8.07305
12 h after dark	8.39201	8.3345	8.48917