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 |
| --- | --- | --- | --- | --- | --- |
| Louisiana 1 | F. Edward Hebert | Democratic | 1940.0 | Re-elected | F. Edward Hebert (D) Unopposed |
| Louisiana 2 | Hale Boggs | Democratic | 1946.0 | Re-elected | Hale Boggs (D) Unopposed |
| Louisiana 3 | Edwin E. Willis | Democratic | 1948.0 | Re-elected | Edwin E. Willis (D) Unopposed |
| Louisiana 4 | Overton Brooks | Democratic | 1936.0 | Re-elected | Overton Brooks (D) Unopposed |
| Louisiana 5 | Otto Passman | Democratic | 1946.0 | Re-elected | Otto Passman (D) Unopposed |
| Louisiana 6 | James H. Morrison | Democratic | 1942.0 | Re-elected | James H. Morrison (D) Unopposed |
| Louisiana 7 | Henry D. Larcade, Jr. | Democratic | 1942.0 | Re-elected | Henry D. Larcade, Jr. (D) Unopposed |
Question:
what is the minimum number first elected to district louisiana 5?
Answer:
1946.0