condition mean min max 0 h after light 7.758319999999999 7.66223 7.85441 4 h after light 6.75412 5.97335 7.53489 8 h after light 5.056699999999999 4.67176 5.44164 4 h after dark 7.322255 6.65025 7.99426 8 h after dark 7.402645 7.19535 7.60994 12 h after dark 8.533764999999999 8.36374 8.70379