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 | Tyres | Points |
| --- | --- | --- | --- | --- | --- |
| 1961.0 | Scuderia Serenissima | De Tomaso F1 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1961.0 | Isobele de Tomaso | De Tomaso F1 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1962.0 | Otelle Nucci | LDS Mk 1 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1962.0 | Mike Harris | Cooper T53 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1963.0 | Otelle Nucci | LDS Mk 1 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1963.0 | Otelle Nucci | Alfa Romeo Special | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1963.0 | Sam Tingle | LDS Mk 1 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1965.0 | Sam Tingle | LDS Mk 1 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1965.0 | Jackie Pretorius | LDS Mk 1 | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1965.0 | Otelle Nucci | Alfa Romeo Special | Alfa Romeo Giulietta 1.5 L4 | D | 0.0 |
| 1970.0 | Bruce McLaren Motor Racing | McLaren M7D M14D | Alfa Romeo T33 3.0 V8 | G | 0.0 |
| 1971.0 | STP March Racing Team | March 711 | Alfa Romeo T33 3.0 V8 | F | 0.0 |
| 1976.0 | Martini Racing | Brabham BT45 | Alfa Romeo 115-12 3.0 F12 | G | 9.0 |
| 1977.0 | Martini Racing | Brabham BT45 BT45B | Alfa Romeo 115-12 3.0 F12 | G | 27.0 |
| 1978.0 | Parmalat Racing Team | Brabham BT45C BT46 BT46B BT46C | Alfa Romeo 115-12 3.0 F12 | G | 53.0 |
| 1979.0 | Parmalat Racing Team | Brabham BT46 BT48 BT49 | Alfa Romeo 115-12 1260 3.0 | G | 7.0 |
| 1983.0 | Osella Squadra Corse | Osella FA1D FA1E | Alfa Romeo 1260 3.0 V12 | P | 0.0 |
| 1984.0 | Osella Squadra Corse | Osella FA1F | Alfa Romeo 890T 1.5 V8 (t/c) | P | 2.0 |
| 1985.0 | Osella Squadra Corse | Osella FA1F | Alfa Romeo 890T 1.5 V8 (t/c) | P | 0.0 |
| 1986.0 | Osella Squadra Corse | Osella FA1G FA1F FA1H | Alfa Romeo 890T 1.5 V8 (t/c) | P | 0.0 |
| 1987.0 | Osella Squadra Corse | Osella FA1I | Alfa Romeo 890T 1.5 V8 (t/c) | G | 0.0 |
| 1988.0 | Osella Squadra Corse | Osella FA1I FA1L | Osella 890T 1.5 V8 (t/c) | G | 0.0 |
Question:
What year was the brabham bt46 bt48 bt49 Chassis common?
Answer:
1979.0