condition	mean	min	max
4 h after light	8.27085	8.09455	8.50778
8 h after light	8.432713333333334	8.11945	8.6645
12 h after light	8.48786	8.40973	8.57685
4 h after dark	8.457823333333334	8.177430000000001	8.60949
8 h after dark	8.38501	8.11699	8.5666
12 h after dark	8.469803333333333	8.41973	8.550469999999999