condition mean min max 0 h after light 0.847388 0.727073 0.967703 4 h after light 0.119263 0.0 0.238526 8 h after light 0.730151 0.598371 0.861931 4 h after dark 0.83325 0.831607 0.834893 8 h after dark 1.194846 0.840962 1.54873 12 h after dark 1.3090715 0.845603 1.77254