condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0291758 0.0 0.0583516 12 h after light 0.030216 0.0 0.060432 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.45509343333333335 0.0397503 1.18326