condition mean min max 4 h after light 10.6937265 9.785711 11.601742 8 h after light 10.377291 9.192432 11.56215 12 h after light 9.485162500000001 8.301159 10.669166 4 h after dark 9.8216605 9.522314 10.121007 8 h after dark 9.959999 9.854785 10.065213 12 h after dark 11.533945 11.533945 11.533945