Bushwick median home prices

According to the article linked to below, “median home prices in Bushwick have more than doubled, from $300,000 in the third quarter of 2010 to $625,000 in the first quarter of 2013, according to MNS.” My question is, how could they have come up with $625K? I’m seeing numbers that are about $200K less at other sites I checked. http://www.brooklyneagle.com/articles/how-m-train-gentrifying-bushwick-2013-05-30-171500