condition mean min max 4 h after light 1.32888 1.19686 1.4609 8 h after light 1.102567 0.957254 1.24788 12 h after light 1.198829 0.827118 1.57054 4 h after dark 1.2492366666666666 1.0674 1.50805 8 h after dark 1.50122 1.09437 2.04566 12 h after dark 1.3659013333333332 0.976054 1.60336