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 | Chassis | Engine(s) | Tyres | Points |
| --- | --- | --- | --- | --- |
| 1963.0 | BRP 1 | BRM V8 | D | 6.0 |
| 1963.0 | BRP 1 | BRM V8 | D | 6.0 |
| 1964.0 | BRP 1 BRP 2 | BRM V8 | D | 5.0 |
| 1964.0 | BRP 1 BRP 2 | BRM V8 | D | 5.0 |
| 1964.0 | BRP 1 BRP 2 | BRM V8 | D | 5.0 |
Question:
What is the average points of the drivers before 1964?
Answer:
6.0