condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.045476333333333334 0.0 0.136429 4 h after dark 0.0 0.0 0.0 8 h after dark 0.093683 0.0 0.281049 12 h after dark 0.0 0.0 0.0