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 | Entrant | Chassis | Engine | Points |
| --- | --- | --- | --- | --- |
| 1961.0 | Louise Bryden-Brown | Lotus 18 | Climax Straight-4 | 0.0 |
| 1962.0 | Cooper Car Company | Cooper T55 | Climax Straight-4 | 13.0 |
| 1962.0 | Cooper Car Company | Cooper T60 | Climax V8 | 13.0 |
| 1963.0 | Cooper Car Company | Cooper T66 | Climax V8 | 9.0 |
| 1964.0 | Scuderia Centro Sud | BRM P57 | BRM V8 | 4.0 |
| 1965.0 | Reg Parnell Racing | Lotus 25 | BRM V8 | 0.0 |
Question:
What is the average Year with Chassis equalling cooper t60?
Answer:
1962.0