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:
| Team | Winners | Runners-up | Years won | Years runner-up |
| --- | --- | --- | --- | --- |
| Liverpool | 8 | 3 | 1981, 1982, 1983, 1984, 1995, 2001, 2003, 2012 | 1978, 1987, 2005 |
| Aston Villa | 5 | 3 | 1961, 1975, 1977, 1994, 1996 | 1963, 1971, 2010 |
| Manchester United | 4 | 4 | 1992, 2006, 2009, 2010 | 1983, 1991, 1994, 2003 |
| Tottenham Hotspur | 4 | 3 | 1971, 1973, 1999, 2008 | 1982, 2002, 2009 |
| Chelsea | 4 | 2 | 1965, 1998, 2005, 2007 | 1972, 2008 |
| Nottingham Forest | 4 | 2 | 1978, 1979, 1989, 1990 | 1980, 1992 |
| Leicester City | 3 | 2 | 1964, 1997, 2000 | 1965, 1999 |
| Manchester City | 3 | 1 | 1970, 1976, 2014 | 1974 |
| Arsenal | 2 | 5 | 1987, 1993 | 1968, 1969, 1988, 2007, 2011 |
| Norwich City | 2 | 2 | 1962, 1985 | 1973, 1975 |
| Birmingham City | 2 | 1 | 1963, 2011 | 2001 |
| Wolverhampton Wanderers | 2 | 0 | 1974, 1980 | — |
| West Bromwich Albion | 1 | 2 | 1966 | 1967, 1970 |
| Middlesbrough | 1 | 2 | 2004 | 1997, 1998 |
| Queens Park Rangers | 1 | 1 | 1967 | 1986 |
| Leeds United | 1 | 1 | 1968 | 1996 |
| Stoke City | 1 | 1 | 1972 | 1964 |
| Luton Town | 1 | 1 | 1988 | 1989 |
| Sheffield Wednesday | 1 | 1 | 1991 | 1993 |
| Swindon Town | 1 | 0 | 1969 | — |
| Oxford United | 1 | 0 | 1986 | — |
| Blackburn Rovers | 1 | 0 | 2002 | — |
| Swansea City | 1 | 0 | 2013 | — |
| West Ham United | 0 | 2 | — | 1966, 1981 |
| Everton | 0 | 2 | — | 1977, 1984 |
| Bolton Wanderers | 0 | 2 | — | 1995, 2004 |
| Sunderland | 0 | 2 | — | 1985, 2014 |
| Rotherham United | 0 | 1 | — | 1961 |
| Rochdale | 0 | 1 | — | 1962 |
| Newcastle United | 0 | 1 | — | 1976 |
| Southampton | 0 | 1 | — | 1979 |
| Oldham Athletic | 0 | 1 | — | 1990 |
| Tranmere Rovers | 0 | 1 | — | 2000 |
| Wigan Athletic | 0 | 1 | — | 2006 |
| Cardiff City | 0 | 1 | — | 2012 |
| Bradford City | 0 | 1 | — | 2013 |
Question:
what's the number of teams that won the cup four times?
Answer:
4