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 |
| --- | --- | --- | --- | --- |
| 1956.0 | Scuderia Ferrari | Lancia-Ferrari D50 | Ferrari V8 | 0.0 |
| 1957.0 | Scuderia Ferrari | Lancia-Ferrari D50A | Ferrari V8 | 4.0 |
| 1957.0 | Scuderia Ferrari | Ferrari 801 | Ferrari V8 | 4.0 |
| 1958.0 | Scuderia Ferrari | Ferrari Dino 246 | Ferrari V6 | 9.0 |
| 1959.0 | Dr Ing hcf Porsche KG | Porsche 718 F2 | Porsche Flat-4 | 0.0 |
| 1959.0 | Scuderia Ferrari | Ferrari Dino 246 | Ferrari V6 | 0.0 |
| 1960.0 | Scuderia Ferrari | Ferrari Dino 246 | Ferrari V6 | 10.0 |
| 1960.0 | Scuderia Ferrari | Ferrari 246P F2 | Ferrari V6 | 10.0 |
| 1960.0 | Scuderia Centro Sud | Cooper T51 | Maserati Straight-4 | 10.0 |
| 1961.0 | Scuderia Ferrari | Ferrari 156 | Ferrari V6 | 33.0 |
Question:
what is the least year for 4 points?
Answer:
1957.0