Which preposition to use with impoverish

by Occurrences 9%

If we allow them a short time, our expedients will be of little benefit to the nation, which is every day impoverished by the exportation of the necessaries of life, in such quantities, that in a few weeks the law, if it be passed, may be without penalties, for there will be no possibility of disobeying it.

in Occurrences 3%

Impoverished in resources, exhausted by the loss of the flower of their youth, demoralized by the reaction from feverish strife, the forces of disintegration had set in in the United States between 1783 and 1787.

Which preposition to use with  impoverish