condition mean min max 4 h after light 9.550996666666666 4.40879 13.8771 8 h after light 8.424813333333333 1.84264 13.4671 12 h after light 5.287893333333333 4.40518 6.03355 4 h after dark 8.104099999999999 6.81163 8.97822 8 h after dark 11.44525 8.06085 13.9642 12 h after dark 12.4627 11.3281 14.4337