Assertion: year end chart | /r/HasProperty | calculated by an inverse-point system
Facets:
value: prior to nielsen soundscan
type: OTHER
Source sentences:
text: Prior to Nielsen SoundScan, year-end singles charts were calculated by an inverse-point system based solely on a song's performance on the Hot 100 (for example, a song would be given one point for a week spent at position 100, two points for a week spent at position 99 and so forth, up to 100 points for each week spent at number one).