However, in fact prisoners did not contribute to the increase of the population because many of them died due to hard work or ran back to their hometowns after release.
しかし、実際は過酷な労働が原因で多くの者が命を落としたり、出所後は早々に故郷に逃げ帰る者が多く、人口の増加に貢献をすることは無かった。