condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0103923 0.0 0.0207846 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 0.0 0.0 0.0