  We give a upper bound of Lebesgue measure $V(S(f,h,\Omega))$ of the set
$S(f,h,\Omega)$ of points $q\in Q_h^d$ for which the triple $(h,q,\Omega)$ is
dynamically robust when $f$ is monotonic and satisfies certain condition on
some compact subset $\Omega \in \mathbb{R}^d$.
