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 | Class | Team | Machine | Points | Rank | Wins |
| --- | --- | --- | --- | --- | --- | --- |
| 1985.0 | 250cc | Rothmans- Honda France | RS250 | 7.0 | 21st | 0.0 |
| 1986.0 | 250cc | Rothmans- Honda France | NSR250 | 72.0 | 3rd | 1.0 |
| 1987.0 | 250cc | Rothmans- Honda France | NSR250 | 97.0 | 4th | 1.0 |
| 1988.0 | 250cc | Rothmans- Honda France | NSR250 | 158.0 | 4th | 2.0 |
| 1989.0 | 500cc | Elf - Honda | NSR500 | 39.0 | 15th | 0.0 |
| 1990.0 | 250cc | Rothmans- Honda | NSR250 | 78.0 | 10th | 0.0 |
| 1991.0 | 250cc | Gallina - Yamaha | TZ250 | 4.0 | 30th | 0.0 |
| 1992.0 | 500cc | Banco- Yamaha | ROC Yamaha | 2.0 | 23rd | 0.0 |
Question:
How many years have 78 for points?
Answer:
1.0