U.S. home prices increased 12.8% year-over-year in August, finds data from S&P/Case-Shiller Home Price Indices.

On a monthly basis, home prices were up1.3% in August. Las Vegas led the cities with an increase of 2.9%–its highest since August 2004. Detroit and Los Angeles followed with gains of 2%.

Read: New home sales in Toronto hit record low in Q3

“The monthly percentage changes for the 20-City composite show the peak rate of gain in home prices was last April,” says David M. Blitzer, chairman of the Index Committee at S&P Dow Jones Indices. “Since then home prices continued to rise, but at a slower pace each month.”

Read: When non-residents own real estate

He adds, “Las Vegas and California continue to impress with year-over- year increases of over 20%. Denver and Phoenix posted 20 consecutive annual increases; Miami and Minneapolis 19. Despite showing 26 consecutive annual gains, Detroit remains the only city below its January 2000 index level.”