condition mean min max 0 h after light 9.81004 8.90538 10.7147 2 h after light 7.043855 6.55971 7.528 4 h after light 6.81651 6.54687 7.08615 8 h after light 6.50717 6.19782 6.81652 12 h after light 9.381285 9.02923 9.73334 2 h after dark 9.8483 9.5576 10.139 4 h after dark 10.0122 9.3648 10.6596 8 h after dark 8.83418 8.18215 9.48621 12 h after dark 10.423200000000001 10.1102 10.7362