Country Airplay (formerly Hot Country Singles) - Chart position is ranked by number of total audience impressions,
not actual spins. It was changed to this format in January 2005. The country singles chart included 75 songs until
January 6, 2001 when it was reduced to 60 songs. Songs are removed from this chart if they have been on the chart for more
than 20 weeks and rank below 15 in detections (spins) or audience, provided they are not gaining enough audience points
Hot Country Songs - Radio airplay plus sales data plus streaming data
Country Singles Sales and Hot 100 Singles Sales - The top-selling singles compiled from a national sample of retail stores,
mass merchant, and internet sales reports. Date for the Hot 100 Singles Sales is used to compile the Billboard Hot 100.
Billboard Hot 100 - The most popular songs & tracks according to all-format audience impression and sales
Hot 100 Airplay - Monitored audience impressions from all formats are used to measure this chart. Data from this chart
is used to compile the Billboard Hot 100 chart. Songs are removed from the Hot 100 and this chart simultaneously if they have
been on the Hot 100 for more than 20 weeks and rank below 50.
Adult Contemporary and Adult Top 40 - Both charts are ranked by total detections. Songs are removed if they have been on
the chart for more than 20 weeks and rank below 15 or if they have been on the chart for more than 52 weeks and below 10.
Pop 100 - The top Pop singles & tracks according to mainstream top 40 radio audience impressions and singles sales.
Hot Digital Tracks - The top selling downloaded singles
Hot Digital Songs - Combines all versions (for example, explicit and edited versions of the same song) of the top
selling downloaded songs.
Albums ranks the most popular country albums of the week, as compiled by Nielsen Music, based on multi-metric consumption
(blending traditional album sales, track equivalent albums, and streaming equivalent albums).
Album Sales -The week's top-selling country albums, ranked by Nielsen Music.
Top Album Sales - The week's
top-selling albums across all genres, ranked by sales data as compiled by Nielsen Music.
Catalog Albums - a catalog title is one that is more than 18 months old, has
fallen below position 100 on the Billboard 200 and doesn't have a single still growing at a Nielsen BDS-monitored radio
format. Albums meeting this criteria are removed from current status and begin a new chart run on Catalog Albums (i.e.
Country Catalog and Pop Catalog). An album need not have spent any weeks on the Billboard 200 to be eligible for Catalog
Albums. In January 2008, the rules changed it from 2 years to 18 months.
Top Internet Albums - Reflects physical albums ordered through internet merchants, like amazon.com
Top Digital Albums - Release sold as a complete album through digital download services, like iTunes.
Tastemakers - The week's top-selling
albums based on an influential panel of stores comprised of independent retailer coalitions and smaller regional chains, ranked
by sales data as compiled by Nielsen Music.