In his comprehensive biography of Jolson, Herbert Goldman says recordings were a "mere sideline of his professional activity. If they were a sideline they were an extremely profitable one.
Al was the first singer to sell 10 million records and according to Joel Whitburn he had the equivalent of 23 No.1 hits which puts him 4th in the all time list behind Bing Crosby, Paul Whiteman and Guy Lombardo. His two biggest hits in terms of number of weeks at no.1 were April Showers in 1921 and Sonny Boy in 1928.
Here are the details of Jolson's commercial recordings meant for sale to the public. I have just included details of the issued discs, there were many alternate cuts and they continue to be rediscovered to this day.
Al recorded for four labels between 1911 and 1950.