condition mean min max 0 h after light 12.9332 12.0707 13.7957 2 h after light 7.652325 7.63832 7.66633 4 h after light 8.98348 8.97928 8.98768 8 h after light 6.7568 6.5926 6.921 12 h after light 8.48527 7.49438 9.47616 2 h after dark 5.8430599999999995 4.39119 7.29493 4 h after dark 7.15867 4.72315 9.59419 8 h after dark 10.077485 8.73547 11.4195 12 h after dark 12.46565 11.2857 13.6456