condition mean min max 4 h after light 9.669206666666666 8.12947 11.8353 8 h after light 2.9697500000000003 1.34589 4.45044 12 h after light 3.95195 2.46869 6.09399 4 h after dark 5.25473 3.46868 6.21006 8 h after dark 8.71691 8.42214 8.94486 12 h after dark 5.180633333333334 5.05143 5.2888