condition	mean	min	max
4 h after light	6.84836	6.79805	6.88806
8 h after light	6.862116666666667	6.722010000000001	7.0338199999999995
12 h after light	6.883946666666667	6.82712	6.92612
4 h after dark	7.1026533333333335	7.05496	7.1815
8 h after dark	7.21726	7.1457	7.28224
12 h after dark	7.29916	7.1749	7.42996