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:
| Year | Record | Finish | Manager | Playoffs |
| --- | --- | --- | --- | --- |
| 1974.0 | 31-39 | 7th | Hoyt Wilhelm | none |
| 1975.0 | 33-33 | 6th | Gene Hassell | none |
| 1976.0 | 25-42 | 8th | Bobby Dews | none |
| 1977.0 | 43-27 | 2nd | Bob Didier | none |
| 1978.0 | 33-37 | 5th | Eddie Haas | none |
| 1979.0 | 39-31 | 2nd | Gene Hassell | none |
Question:
Name the least year for gene hassell manager and 6th finish
Answer:
1975.0