condition mean min max 4 h after light 3.978385 3.76607 4.1907 8 h after light 0.5366395 0.353794 0.719485 12 h after light 144.2165 141.06 147.373 4 h after dark 188.58599999999998 184.263 195.188 8 h after dark 74.6281 65.9291 81.9788 12 h after dark 13.904433333333333 10.1007 15.8349