condition mean min max 0 h after light 1.024697 0.950594 1.0988 4 h after light 0.8632535 0.324427 1.40208 8 h after light 1.1086735 0.542577 1.67477 4 h after dark 1.1875149999999999 1.07724 1.29779 8 h after dark 1.354865 1.08935 1.62038 12 h after dark 0.7572125000000001 0.65722 0.857205