condition mean min max 0 h after light 0.38715 0.310051 0.464249 4 h after light 0.7374885 0.686586 0.788391 8 h after light 0.388283 0.382752 0.393814 4 h after dark 0.38056 0.305169 0.455951 8 h after dark 0.6125265 0.533432 0.691621 12 h after dark 0.305717 0.302351 0.309083