condition mean min max 4 h after light 0.4374465 0.0 0.874893 8 h after light 0.1772095 0.0 0.354419 12 h after light 7.592455000000001 7.17705 8.00786 4 h after dark 695.7085 682.333 709.084 8 h after dark 45.16465 44.1627 46.1666 12 h after dark 20.093049999999998 19.5989 20.5872