尽管吸纳移民主要国家采取限制移民措施，但是鉴于在仅仅4年之内波兰移民人口就达到大约5 % ， 因此这些估计过于谨慎。
Given that about 5% of the Polish population has now emigrated within a period of only four years, despite immigration restrictions by important target countries, these estimates were much too cautious.