(Dec. 31, 2012) -- On a seasonally adjusted basis, November’s total represented an annual rate of more than 360,000 units, an increase of nearly 10 percent over the previous month and ahead of November last year by 26.1 percent. Year to date, all RV shipments to retailers have now reached 266,789 units for the year, up 13.3 percent over this same period in 2011.