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 |
| --- | --- | --- | --- | --- |
| 1955.0 | Cooper Car Company | Cooper T40 | Bristol Straight-6 | 0 |
| 1956.0 | Jack Brabham | Maserati 250F | Maserati Straight-6 | 0 |
| 1957.0 | Cooper Car Company | Cooper T43 | Climax Straight-4 | 0 |
| 1957.0 | Rob Walker Racing Team | Cooper T43 | Climax Straight-4 | 0 |
| 1958.0 | Cooper Car Company | Cooper T45 | Climax Straight-4 | 3 |
| 1959.0 | Cooper Car Company | Cooper T51 | Climax Straight-4 | 31 (34) |
| 1960.0 | Cooper Car Company | Cooper T51 | Climax Straight-4 | 43 |
| 1960.0 | Cooper Car Company | Cooper T53 | Climax Straight-4 | 43 |
| 1961.0 | Cooper Car Company | Cooper T55 | Climax Straight-4 | 4 |
| 1961.0 | Cooper Car Company | Cooper T58 | Climax V8 | 4 |
| 1962.0 | Brabham Racing Organisation | Lotus 24 | Climax V8 | 9 |
| 1962.0 | Brabham Racing Organisation | Brabham BT3 | Climax V8 | 9 |
| 1963.0 | Brabham Racing Organisation | Lotus 25 | Climax V8 | 14 |
| 1963.0 | Brabham Racing Organisation | Brabham BT3 | Climax V8 | 14 |
| 1963.0 | Brabham Racing Organisation | Brabham BT7 | Climax V8 | 14 |
| 1964.0 | Brabham Racing Organisation | Brabham BT7 | Climax V8 | 11 |
| 1964.0 | Brabham Racing Organisation | Brabham BT11 | Climax V8 | 11 |
| 1965.0 | Brabham Racing Organisation | Brabham BT11 | Climax V8 | 9 |
| 1966.0 | Brabham Racing Organisation | Brabham BT19 | Repco V8 | 42 (45) |
| 1966.0 | Brabham Racing Organisation | Brabham BT20 | Repco V8 | 42 (45) |
| 1967.0 | Brabham Racing Organisation | Brabham BT20 | Repco V8 | 46 (48) |
| 1967.0 | Brabham Racing Organisation | Brabham BT19 | Repco V8 | 46 (48) |
| 1967.0 | Brabham Racing Organisation | Brabham BT24 | Repco V8 | 46 (48) |
| 1968.0 | Brabham Racing Organisation | Brabham BT24 | Repco V8 | 2 |
| 1968.0 | Brabham Racing Organisation | Brabham BT26 | Repco V8 | 2 |
| 1969.0 | Brabham Racing Organisation | Brabham BT26A | Cosworth V8 | 14 |
| 1970.0 | Brabham Racing Organisation | Brabham BT33 | Cosworth V8 | 25 |
Question:
how many times is the chassis brabham bt33?
Answer:
1.0