condition mean min max 4 h after light 498.2510115 343.771354 652.730669 8 h after light 378.2655065 330.093699 426.437314 12 h after light 218.2481675 81.510668 354.985667 4 h after dark 126.948293 86.189936 167.70665 8 h after dark 101.576 61.849981 141.302019 12 h after dark 238.623806 238.623806 238.623806