condition mean min max 4 h after light 0.8443805 0.798082 0.890679 8 h after light 1.652745 1.58798 1.71751 12 h after light 1.392445 1.34558 1.43931 4 h after dark 0.6671196666666667 0.501319 0.768788 8 h after dark 0.64662 0.438203 0.845194 12 h after dark 0.6175163333333333 0.4879 0.688397