condition mean min max 0 h after light 5.312475 4.767 5.85795 4 h after light 6.5689150000000005 6.07867 7.05916 8 h after light 4.68096 4.20552 5.1564 4 h after dark 8.41478 7.30361 9.52595 8 h after dark 8.343985 8.23715 8.45082 12 h after dark 6.873735 6.85526 6.89221