Overall is the key word, as the overall decline in mortgages that are "underwater" or "upside down" is near 20% in comparison to one year ago, be aware that this is countrywide and any specific area could still have a great number of "shortsale" properties - talk to your realtor when looking to buy and /or sell , as every location is different and real estate is LOCAL.
http://rismedia.com/2014-10-01/only-10-7-percent-of-all-mortgaged-homes-still-underwater/?utm_source=newsletter&utm_medium=email&utm_campaign=eNews