condition mean min max 4 h after light 13.8119905 12.523151 15.10083 8 h after light 11.613110500000001 11.359393 11.866828 12 h after light 12.7286265 12.591108 12.866145 4 h after dark 12.4790375 11.30985 13.648225 8 h after dark 11.802480500000001 11.646392 11.958569 12 h after dark 13.985025 13.985025 13.985025