condition mean min max 4 h after light 1.7848799999999998 1.29864 2.27112 8 h after light 1.723385 1.29484 2.15193 12 h after light 2.888525 2.42516 3.35189 4 h after dark 4.47411 4.15414 4.79408 8 h after dark 2.7480700000000002 2.5526 2.94354 12 h after dark 1.7520850000000001 1.34685 2.15732