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 | Robert Livingston | Republican | 1977.0 | Re-elected | Robert Livingston (R) (unopposed) |
| Louisiana 2 | William J. Jefferson | Democratic | 1990.0 | Re-elected | William J. Jefferson (D) (unopposed) |
| Louisiana 3 | Billy Tauzin | Republican | 1980.0 | Re-elected | Billy Tauzin (R) (unopposed) |
| Louisiana 4 | Jim McCrery | Republican | 1988.0 | Re-elected | Jim McCrery (R) 71.38% Paul Chachere (D) 28.62% |
| Louisiana 6 | Richard Baker | Republican | 1986.0 | Re-elected | Richard Baker (R) 69.30% Steve Myers (D) 30.70% |
Question:
What is the first election year listed?
Answer:
1977.0