Context: Southampton had an estimated 236,900 people living within the city boundary in 2011. There is a sizeable Polish population in the city, with estimates as high as 20,000.

Question: In 2011, what was the estimated population of Southampton inside city limits?
Answer: 236,900

Question: What nationality of people makes up a large portion of Southampton residents?
Answer: Polish

Question: What's the highest estimate of the Polish population of the city of Southampton?
Answer: 20,000