Eric Church, Luke Bryan, Florida Georgia Line and Brantley Gilbert are among the best-selling recording artists in America during the first half of 2014, according to a report released by Nielsen SoundScan and Nielsen BDS.
The two services monitor record sales and radio airplay, respectively, and are the sources of most Billboard magazine charts.
The statistics cited cover the period from Dec. 30, 2013 through June 29, 2014.
Overall album sales -- including CDs, cassettes, vinyl and digital formats and "track equivalent albums" (TEA) -- are down 14.3 percent from the same period last year, from 210.2 million units to 180.2 million units.
CD sales alone plummeted 19.6 percent from 78.2 million to 62.9 million. Vinyl albums sales -- a minuscule segment of the market -- increased 40.4 percent from 2.9 million to 4 million.
Among the Top 10 best-selling physical albums of the past six months, Church's The Outsiders ranks No. 4 (373,000 copies sold), Bryan's Crash My Party No. 9 (277,000) and Gilbert's Just As I Am No. 10 (275,000).
The soundtrack from Frozen occupies the No. 1 spot with sales of 1,694,000 copies.
With TEA added to the actual physical albums sold, The Outsiders stands at No. 6 (755,000), Crash My Party at No. 7 (746,000) and Florida Georgia Line's Here's to the Good Times at No. 10 (712,000).
Frozen also leads this category with total sales of 3,379,000 copies.
The Outsiders and Crash My Party rank No. 5 and No. 8, respectively, among the bestselling digital albums, with totals of 269,000 and 178,000. Frozen triumphs again with 1 million units sold.
There are no country acts in the Top 10 lists of vinyl albums sold, digital songs sold, audio streamed, videos streamed or most-played songs on the radio.