According to Billboard and Nielsen Music, 2016 country albums sales were down 11 percent from 2015. Interestingly enough, the top-selling album of 2016—Chris Stapleton’s Traveller—was released in 2015, and so were two other albums in the Top 10: Thomas Rhett’s Tangled Up and Carrie Underwood’s Storyteller. Sam Hunt’s Montevallo was released in 2014. With sales…