condition mean min max 4 h after light 10.574349999999999 9.6354 11.5133 8 h after light 10.5529 10.4028 10.703 12 h after light 14.256250000000001 13.9732 14.5393 4 h after dark 19.303 18.3231 20.2829 8 h after dark 16.94 16.8865 16.9935 12 h after dark 15.90025 15.8361 15.9644