condition mean min max 0 h after light 19.72165 18.5914 20.8519 2 h after light 11.88575 11.2769 12.4946 4 h after light 9.919385 8.40087 11.4379 8 h after light 10.810179999999999 9.77576 11.8446 12 h after light 7.52324785 0.0143957 15.0321 2 h after dark 9.957675 4.73755 15.1778 4 h after dark 5.132894 0.394308 9.87148 8 h after dark 18.29435 14.8618 21.7269 12 h after dark 20.41675 20.3464 20.4871