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 | Starts | Wins | Top 5 | Top 10 | Poles | Avg. Start | Avg. Finish | Winnings | Position | Team(s) |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1981.0 | 22.0 | 1.0 | 5.0 | 12.0 | 1.0 | 14.5 | 14.6 | $152,855 | 21st | #47 Race Hill Farm Team |
| 1982.0 | 30.0 | 0.0 | 3.0 | 15.0 | 1.0 | 15.4 | 15.7 | $375,758 | 8th | #47 Race Hill Farm Team |
| 1983.0 | 28.0 | 0.0 | 1.0 | 7.0 | 1.0 | 12.9 | 17.9 | $159,172 | 16th | #47 Race Hill Farm Team |
| 1984.0 | 30.0 | 0.0 | 5.0 | 11.0 | 0.0 | 12.6 | 15.4 | $246,510 | 11th | #47 Race Hill Farm Team |
| 1985.0 | 28.0 | 0.0 | 5.0 | 12.0 | 0.0 | 13.9 | 16.6 | $40,304 | 13th | #47 Race Hill Farm Team |
| 1986.0 | 17.0 | 0.0 | 0.0 | 2.0 | 0.0 | 23.1 | 24.1 | $106,835 | 31st | #98 Curb Racing |
Question:
How many different starts had an average finish of 17.9?
Answer:
1.0