condition mean min max 4 h after light 60.2469335 54.874347 65.61952 8 h after light 47.8399315 28.132492 67.547371 12 h after light 52.52538 37.520954 67.529806 4 h after dark 18.084525 15.537202 20.631848 8 h after dark 38.363800499999996 30.562236 46.165365 12 h after dark 195.519257 195.519257 195.519257