condition	mean	min	max
4 h after light	8.941089999999999	8.51424	9.36794
8 h after light	8.013415	7.22847	8.79836
12 h after light	12.224599999999999	11.9858	12.4634
4 h after dark	14.1674	13.5376	14.7972
8 h after dark	18.092100000000002	17.2025	18.9817
12 h after dark	12.219249999999999	11.7119	12.7266