condition mean min max 0 h after light 6.7188099999999995 6.24948 7.18814 4 h after light 7.945875000000001 6.83945 9.0523 8 h after light 7.965895000000001 7.38259 8.5492 4 h after dark 11.085799999999999 10.6843 11.4873 8 h after dark 8.46628 7.58613 9.34643 12 h after dark 6.125360000000001 5.31648 6.93424