condition mean min max 4 h after light 5.436030000000001 5.31217 5.55989 8 h after light 4.82678 4.45535 5.19821 12 h after light 5.456875 5.22385 5.6899 4 h after dark 7.40761 6.93559 7.77863 8 h after dark 7.429093333333333 6.34779 9.42736 12 h after dark 4.892286666666667 4.15704 5.30672