Well in the Princeton, NJ area in my development, I would guess we got right around a foot when all said and done. My dad and I just paced ourselves shoveling this morning, and got it done in about 2 hours.
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)