condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.193442 0.0 0.580326 3 h after dark 0.5466833333333333 0.0 1.64005 6 h after dark 0.0 0.0 0.0 9 h after dark 0.35833333333333334 0.0 1.075 12 h after dark 0.6186536666666667 0.0 0.984243