condition mean min max 4 h after light 8.2979 5.10209 12.7126 8 h after light 6.78399 2.01584 11.4735 12 h after light 4.916793333333334 2.98822 6.27084 4 h after dark 10.719466666666667 8.3396 12.5715 8 h after dark 11.681486666666666 8.15246 15.7858 12 h after dark 8.10937 6.85615 9.70663