condition mean min max 4 h after light 0.003736225 0.0 0.00747245 8 h after light 0.01002195 0.0 0.0200439 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