condition	mean	min	max
4 h after light	7.263739999999999	6.88678	7.52855
8 h after light	7.370683333333333	7.07556	7.5763
12 h after light	7.48553	6.902360000000001	7.80156
4 h after dark	7.705	7.49326	7.81705
8 h after dark	7.524733333333334	7.01112	7.8113600000000005
12 h after dark	7.622803333333334	7.332960000000001	7.821560000000001