condition	mean	min	max
4 h after light	8.23951	7.86892	8.6101
8 h after light	7.906655	7.85513	7.95818
12 h after light	8.377455	7.85753	8.89738
4 h after dark	9.594745	9.07149	10.118
8 h after dark	8.56276	8.5146	8.61092
12 h after dark	10.11798	9.51956	10.7164