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 |
| --- | --- | --- | --- | --- | --- |
| Georgia 1 | Ronald "Bo" Ginn | Democratic | 1972.0 | Re-elected | Ronald "Bo" Ginn (D) Unopposed |
| Georgia 2 | Dawson Mathis | Democratic | 1970.0 | Re-elected | Dawson Mathis (D) Unopposed |
| Georgia 3 | Jack Thomas Brinkley | Democratic | 1966.0 | Re-elected | Jack Thomas Brinkley (D) Unopposed |
| Georgia 6 | John James Flynt, Jr. | Democratic | 1954.0 | Retired Republican gain | Newt Gingrich (R) 54.4% Virginia Shapard (D) 45.6% |
| Georgia 8 | Billy Lee Evans | Democratic | 1976.0 | Re-elected | Billy Lee Evans (D) Unopposed |
| Georgia 9 | Ed Jenkins | Democratic | 1976.0 | Re-elected | Ed Jenkins (D) 76.9% David G. Ashworth (R) 23.1% |
Question:
How many parties are there in races involving Dawson Mathis?
Answer:
1.0