Question: What is the population of big spring texas?
qaPairs: question: What was the population of Big Spring, Texas in 2010?
answer: 27,282
question: What was the population of Big Spring, Texas in 2000?
answer: 25,233
question: What was the population of Big Spring, Texas in 1990?
answer: 23,093
question: What is the 2018 estimated population of Big Spring, Texas?
answer: 28,162