LW = Last Week's Chart Position
ADDS = Station Airplay Adds
DROPS* = Station Airplay Drops
SPINS = How many times a Single or multiple tracks off the Album play
REPORTS = Number of stations playing songs with links to detailed tracking for Clients
WEEKS = Number of Weeks on Chart
TREND = The overall direction of the Album/Single based on the previous week's airplay
*Drops are not always permanent. Songs may be dropped for a week and return as an Add the following week.