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:
| District | Incumbent | Party | First elected | Result | Candidates |
| --- | --- | --- | --- | --- | --- |
| Mississippi 1 | John E. Rankin | Democratic | 1920.0 | Re-elected | John E. Rankin (D) Unopposed |
| Mississippi 2 | Bill G. Lowrey | Democratic | 1920.0 | Re-elected | Bill G. Lowrey (D) Unopposed |
| Mississippi 3 | William Y. Humphreys | Democratic | 1923.0 | Retired Democratic hold | William Madison Whittington (D) Unopposed |
| Mississippi 4 | Jeff Busby | Democratic | 1922.0 | Re-elected | Jeff Busby (D) 95.7% R. H. DeKay (R) 4.3% |
| Mississippi 5 | Ross A. Collins | Democratic | 1920.0 | Re-elected | Ross A. Collins (D) Unopposed |
| Mississippi 6 | T. Webber Wilson | Democratic | 1922.0 | Re-elected | T. Webber Wilson (D) Unopposed |
| Mississippi 7 | Percy E. Quin | Democratic | 1912.0 | Re-elected | Percy E. Quin (D) Unopposed |
Question:
What is the least first elected for jeff busby?
Answer:
1922.0