condition	mean	min	max
4 h after light	7.629096666666666	7.279439999999999	7.8251100000000005
8 h after light	8.084973333333332	7.85728	8.51865
12 h after light	7.596089999999999	7.38575	7.847339999999999
4 h after dark	7.490530000000001	7.2591600000000005	7.70322
8 h after dark	7.260383333333333	7.08108	7.52492
12 h after dark	7.173093333333333	6.84425	7.372310000000001