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:
| No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code |
| --- | --- | --- | --- | --- | --- | --- |
| 145.0 | 1.0 | "The City Kids" | Richard L. Bare | Jay Sommers and Dick Chevillat | September15,1970 | 146.0 |
| 146.0 | 2.0 | "The Coming-Out Party" | Richard L. Bare | Jay Sommers and Dick Chevillat | September22,1970 | 147.0 |
| 147.0 | 3.0 | "Jealousy" | Richard L. Bare | Jay Sommers and Dick Chevillat | September29,1970 | 145.0 |
| 148.0 | 4.0 | "A Royal Love Story" | Richard L. Bare | Jay Sommers and Dick Chevillat | October6,1970 | 149.0 |
| 149.0 | 5.0 | "Oliver Goes Broke" | Richard L. Bare | Jay Sommers and Dick Chevillat | October20,1970 | 150.0 |
| 150.0 | 6.0 | "The Great Mayoralty Campaign" | Richard L. Bare | Jay Sommers and Dick Chevillat | October27,1970 | 156.0 |
| 151.0 | 7.0 | "Eb's Double Trouble" | Richard L. Bare | Jay Sommers and Dick Chevillat | November10,1970 | 148.0 |
| 152.0 | 8.0 | "Apple-Picking Time" | Richard L. Bare | Jay Sommers and Dick Chevillat | November17,1970 | 151.0 |
| 153.0 | 9.0 | "Enterprising Eb" | Richard L. Bare | Jay Sommers and Dick Chevillat | November24,1970 | 152.0 |
| 154.0 | 10.0 | "Oliver's Double" | Richard L. Bare | Dan Beaumont | December1,1970 | 153.0 |
| 155.0 | 11.0 | "The High Cost of Loving" | Richard L. Bare | Jay Sommers and Dick Chevillat | December8,1970 | 154.0 |
| 156.0 | 12.0 | "The Liberation Movement" | Richard L. Bare | Dick Chevillat and Dan Beaumont | December15,1970 | 155.0 |
| 157.0 | 13.0 | "Charlie, Homer and Natasha" | Richard L. Bare | Jay Sommers and Dick Chevillat | December22,1970 | 157.0 |
| 158.0 | 14.0 | "The Engagement Ring" | Richard L. Bare | Dick Chevillat and Dan Beaumont | December29,1970 | 158.0 |
| 159.0 | 15.0 | "The Free Paint Job" | Richard L. Bare | Jay Sommers and Dick Chevillat | January5,1971 | 159.0 |
| 160.0 | 16.0 | "Son of Drobny" | Richard L. Bare | Dan Beaumont | January12,1971 | 160.0 |
| 161.0 | 17.0 | "The Wedding Deal" | Richard L. Bare | Dick Chevillat and Dan Beaumont | January19,1971 | 164.0 |
| 162.0 | 18.0 | "Star Witness" | Richard L. Bare | Dick Chevillat and Dan Beaumont | January26,1971 | 163.0 |
| 163.0 | 19.0 | "The Spot Remover" | Richard L. Bare | Dan Beaumont | February2,1971 | 166.0 |
| 164.0 | 20.0 | "King Oliver I" | Richard L. Bare | Jay Sommers and Dick Chevillat | February9,1971 | 170.0 |
| 165.0 | 21.0 | "A Girl for Drobny" | Richard L. Bare | Dick Chevillat and Dan Beaumont | February16,1971 | 167.0 |
| 166.0 | 22.0 | "The Carpenter's Ball" | Richard L. Bare | Dick Chevillat and Dan Beaumont | February23,1971 | 162.0 |
| 167.0 | 23.0 | "The Hole in the Porch" | Richard L. Bare | Dick Chevillat and Dan Beaumont | March2,1971 | 168.0 |
| 168.0 | 24.0 | "Lisa the Psychologist" | Richard L. Bare | Dick Chevillat and Dan Beaumont | March9,1971 | 161.0 |
| 169.0 | 25.0 | "Hawaiian Honeymoon" | Vincent Sherman | Jay Sommers | March16,1971 | 165.0 |
Question:
How many episodes had a title "the great mayoralty campaign"?
Answer:
1.0