What was the most popular song in 1968?

Top 5 Songs of 1958

1. Nel Blu Dipinto Di Blu (Volare) by : Domenico Modugno
2. All I Have To Do Is Dream/Claudette by The Everly Brothers
3. Don't/I Beg Of You by Elvis Presley
4. Witch Doctor by David Seville
5. Patricia by Perez Prado