condition mean min max 4 h after light 1.1966575 0.483685 1.90963 8 h after light 1.586725 1.27757 1.89588 12 h after light 2.035665 1.93544 2.13589 4 h after dark 1.8590366666666667 1.56322 2.21259 8 h after dark 1.47156 1.28047 1.63842 12 h after dark 0.7632963333333334 0.370096 1.09922