condition mean min max 3 h after light 3.39672 2.73922 3.76588 6 h after light 3.28912 2.43442 4.26412 9 h after light 6.62709 2.89379 10.0528 12 h after light 11.2970825 3.57333 18.5292 3 h after dark 13.181746666666667 9.97184 17.7269 6 h after dark 7.076726666666667 5.2645 8.83158 9 h after dark 3.4614633333333336 2.52258 5.01301 12 h after dark 1.067925 0.0 2.13585