condition mean min max 0 h after light 3.706345 3.36335 4.04934 4 h after light 4.14595 4.02152 4.27038 8 h after light 5.008845 4.59157 5.42612 4 h after dark 6.26615 5.71105 6.82125 8 h after dark 6.449705 6.18528 6.71413 12 h after dark 3.613155 3.02013 4.20618