condition mean min max 0 h after light 6.24538 5.5569 6.93386 2 h after light 12.3296 12.1172 12.542 4 h after light 7.249845 6.41907 8.08062 8 h after light 7.10145 6.96769 7.23521 12 h after light 12.987594999999999 9.49789 16.4773 2 h after dark 8.175735 7.07139 9.28008 4 h after dark 5.731294999999999 5.68683 5.77576 8 h after dark 8.768005 8.52383 9.01218 12 h after dark 8.519074999999999 7.07257 9.96558