condition mean min max 4 h after light 0.0074507 0.0 0.0149014 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0046245 0.0 0.0138735