condition	mean	min	max
4 h after light	3.7405433333333336	3.6352800000000003	3.91019
8 h after light	3.7596933333333333	3.64822	3.9234199999999997
12 h after light	3.75294	3.6709	3.85574
4 h after dark	3.71383	3.64727	3.75054
8 h after dark	3.7630600000000003	3.6097	3.98575
12 h after dark	3.716196666666667	3.6326	3.7831599999999996