Worldwide business and general aviation avionics sales amounted to $614.4 million in the third quarter, according to the Aircraft Electronics Association’s latest avionics market report, released on Tuesday.

While this figure is down $30 million from the same quarter last year, sales figures for the first nine months are up 2.5 percent, to $1.92 billion, from a year ago. These dollar amounts are based on net sales price and cover all business and general aviation aircraft electronic sales, including cockpit and cabin systems, avionics software upgrades, batteries and hardware.

Of the total sales in the third quarter, 52.7 percent–$323.7 million–came from forward-fit avionics installed by airframe manufacturers during production. Retrofit sales amounted to $290.7 million, comprising 47.3 percent of total sales.

According to the companies that separated their total sales figures between North America and other international markets, 63.4 percent of the sales volume was in North America, while 36.6 percent was in other international markets, AEA said.