condition mean min max 4 h after light 0.8480844999999999 0.745393 0.950776 8 h after light 0.938688 0.755146 1.12223 12 h after light 0.42441799999999996 0.367023 0.481813 4 h after dark 0.1411809 0.0 0.326385 8 h after dark 0.576055 0.201698 0.922146 12 h after dark 1.223978 0.321888 2.99431