condition	mean	min	max
4 h after light	9.903785	9.26407	10.5435
8 h after light	5.344055	5.06921	5.6189
12 h after light	8.43064	7.03939	9.82189
4 h after dark	16.4012	13.542	18.6345
8 h after dark	18.339966666666665	13.3077	21.5775
12 h after dark	16.37473333333333	13.6439	18.3776