Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Song | US R&B | US Rap | Album |
| --- | --- | --- | --- | --- |
| 1991 | "Mistadobalina" | 55 | 6 | I Wish My Brother George Was Here |
| 1991 | "Sleepin' on My Couch" | — | — | I Wish My Brother George Was Here |
| 1992 | "Dr. Bombay.." | — | — | I Wish My Brother George Was Here |
| 1993 | "Catch a Bad One" | — | — | No Need for Alarm |
| 1994 | "Wrong Place" | — | 48 | No Need for Alarm |
| 1999 | "Phoney Phranchise" | — | 47 | Both Sides of the Brain |
| 2000 | "If You Must" | — | 27 | Both Sides of the Brain |
| 2008 | "Workin' It" | — | — | Eleventh Hour |
| 2011 | "One out of a Million" | — | — | Golden Era |
Question:
what year had the most singles?
Answer:
1991