OK! I got Soundscan this week so I've done some math to get a few numbers for the past few weeks. I also got last week's Soundscan so here are the numbers for the past month:

Week 74: 3,976
Week 75: 3,766
Week 76: 3,327
Week 77: 4,041

This week, the "Greatest Hits" was also Pace Setter on the Billboard Country Albums chart, moving 9 spots #46 to #37.