condition mean min max 0 h after light 0.958941 0.320122 1.59776 4 h after light 5.29862 4.41085 6.18639 8 h after light 105.154 103.766 106.542 4 h after dark 14.46705 13.4951 15.439 8 h after dark 4.89936 4.72078 5.07794 12 h after dark 1.1030285 0.957367 1.24869