condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.079644 0.0 0.238932 4 h after dark 0.05872 0.0 0.17616 8 h after dark 0.09776066666666666 0.0 0.293282 12 h after dark 0.2639416666666667 0.0 0.444355