condition mean min max 0 h after light 2.4294450000000003 2.35861 2.50028 4 h after light 2.62331 2.24379 3.00283 8 h after light 4.12223 3.87534 4.36912 4 h after dark 4.83957 4.18768 5.49146 8 h after dark 3.79197 3.44951 4.13443 12 h after dark 3.3273849999999996 2.3406 4.31417