https://en.wikipedia.org/wiki/Billboard_Year-End_Hot_100_singles_of_2005
The Billboard Hot 100 is a chart that ranks the best-performing singles of the United States. Its data, published by Billboard magazine and compiled by Nielsen SoundScan, is based collectively on each single's weekly physical and digital sales, as well as airplay and streaming.At the end of a year, Billboard will publish an annual list of the 100 most successful songs throughout that …