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:
| Rank | Engine | Wins | First win | Latest win |
| --- | --- | --- | --- | --- |
| 1.0 | Ferrari | 222.0 | 1951 British Grand Prix | 2013 Spanish Grand Prix |
| 2.0 | Ford | 176.0 | 1967 Dutch Grand Prix | 2003 Brazilian Grand Prix |
| 3.0 | Renault | 162.0 | 1979 French Grand Prix | 2013 Indian Grand Prix |
| 4.0 | Mercedes-Benz | 99.0 | 1954 French Grand Prix | 2013 Hungarian Grand Prix |
| 5.0 | Honda | 72.0 | 1965 Mexican Grand Prix | 2006 Hungarian Grand Prix |
| 6.0 | Coventry Climax | 40.0 | 1958 Argentine Grand Prix | 1965 German Grand Prix |
| 7.0 | TAG | 25.0 | 1984 Brazilian Grand Prix | 1987 Portuguese Grand Prix |
| 8.0 | BMW | 20.0 | 1982 Canadian Grand Prix | 2008 Canadian Grand Prix |
| 9.0 | BRM | 18.0 | 1959 Dutch Grand Prix | 1972 Monaco Grand Prix |
| 10.0 | Alfa Romeo | 12.0 | 1950 British Grand Prix | 1978 Italian Grand Prix |
| 11.0 | Maserati | 11.0 | 1953 Italian Grand Prix | 1967 South African Grand Prix |
| 11.0 | Offenhauser | 11.0 | 1950 Indianapolis 500 * | 1960 Indianapolis 500 * |
| 13.0 | Vanwall | 9.0 | 1957 British Grand Prix | 1958 Morocco Grand Prix |
| 14.0 | Repco | 8.0 | 1966 French Grand Prix | 1967 Canadian Grand Prix |
| 15.0 | Mugen Honda | 4.0 | 1996 Monaco Grand Prix | 1999 Italian Grand Prix |
| 16.0 | Matra | 3.0 | 1977 Swedish Grand Prix | 1981 Canadian Grand Prix |
| 17.0 | Porsche | 1.0 | 1962 French Grand Prix | 1962 French Grand Prix |
| 17.0 | Weslake | 1.0 | 1967 Belgian Grand Prix | 1967 Belgian Grand Prix |
Question:
What is the rank 6 lowest win who's first win was at the 1950 British Grand Prix?
Answer:
12.0