condition	mean	min	max
4 h after light	6.914703333333333	6.682639999999999	7.04253
8 h after light	9.324253333333333	9.177389999999999	9.44565
12 h after light	9.560093333333333	9.45067	9.68188
4 h after dark	8.36984	8.34636	8.40222
8 h after dark	8.472063333333333	8.388630000000001	8.56282
12 h after dark	7.17123	7.02948	7.372210000000001