condition mean min max 0 h after light 0.391705 0.0 0.78341 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.805985 0.0 1.61197 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.767199 0.752959 0.781439 8 h after dark 0.440578 0.0 0.881156 12 h after dark 0.0 0.0 0.0