condition mean min max 0 h after light 44.8892 42.4545 47.3239 2 h after light 7.6835 4.7408 10.6262 4 h after light 13.19795 11.8609 14.535 8 h after light 10.8921 9.7746 12.0096 12 h after light 8.50572 7.28792 9.72352 2 h after dark 22.29375 17.3039 27.2836 4 h after dark 38.46885 37.6004 39.3373 8 h after dark 50.57515 47.567 53.5833 12 h after dark 54.0182 52.4691 55.5673