авторы ролика сразу предупреждают:
"** The song that was Billboard's #1 single in America for the most consecutive weeks was deemed the most popular. **
If you're wondering why a certain song wasn't included, it's probably because the song didn't spend the most weeks at #1 that year -- even though it may have sold more copies in the long run.."
И, да:"This also provides an interesting look at the history and evolution of pop music over the past 76 years."
Мне тоже очень интересно было проследить:))
