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 |
| --- | --- | --- | --- | --- | --- |
| Virginia 1 | S. Otis Bland | Democratic | 1918.0 | Re-elected | S. Otis Bland (D) Unopposed |
| Virginia 2 | Norman R. Hamilton | Democratic | 1936.0 | Lost renomination Democratic hold | Colgate Darden (D) 87.7% Carl P. Spaeth (I) 12.3% |
| Virginia 3 | Dave E. Satterfield, Jr. | Democratic | 1937.0 | Re-elected | Dave E. Satterfield, Jr. (D) Unopposed |
| Virginia 4 | Patrick H. Drewry | Democratic | 1920.0 | Re-elected | Patrick H. Drewry (D) Unopposed |
| Virginia 5 | Thomas G. Burch | Democratic | 1930.0 | Re-elected | Thomas G. Burch (D) Unopposed |
Question:
How many incumbents were first elected in 1930?
Answer:
1.0