condition mean min max 4 h after light 0.02365545 0.0158522 0.0314587 8 h after light 0.00860055 0.0 0.0172011 12 h after light 0.0286495 0.0156859 0.0416131 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0153771 0.0137411 0.0170131 12 h after dark 0.02954385 0.0135281 0.0455596