I do agree that the population seems low, especially when compared to estimates of current population. But that's the number provided in the 2004 census, the most recent census conducted in Syria I believe. Either the authorities used a more conservative definition of the city's borders giving lower number, or the city grew at a rapid pace in the last 20 years. Whatever it is, I have no more detailed and confirmed number other than the one I used. Others, while they might reflect the current reality better, are just estimates. If you, or others, disagree with me and prefer to use a more recent estimate, I won't stop them. I just used what I thought was the most recent good data we have.