condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.072752 0.0 0.218256 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.56868 0.0 1.70604 12 h after dark 0.0 0.0 0.0