condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.245661 0.0 0.491322 12 h after light 0.0 0.0 0.0 2 h after dark 0.267274 0.0 0.534548 4 h after dark 0.0 0.0 0.0 8 h after dark 0.518 0.0 1.036 12 h after dark 0.1225655 0.0 0.245131