condition mean min max 4 h after light 8.009176666666667 3.51765 14.1723 8 h after light 14.3425 3.4368 23.7157 12 h after light 12.17356 9.53648 15.521 4 h after dark 13.879199999999999 10.1381 19.3846 8 h after dark 5.076653333333333 3.67106 6.53524 12 h after dark 8.354293333333333 6.86739 9.21872