condition mean min max 4 h after light 4.025980000000001 3.53127 4.52069 8 h after light 3.578895 3.21459 3.9432 12 h after light 4.174015000000001 4.06512 4.28291 4 h after dark 4.329695 4.05076 4.60863 8 h after dark 3.96299 3.82695 4.09903 12 h after dark 4.06272 3.92358 4.20186