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:
| Club | Winners | Runner-ups | Winning Years | Runner-up Years |
| --- | --- | --- | --- | --- |
| FK Austria Wien | 6 | 2 | 1990, 1991, 1992, 1994, 2003, 2004 | 1986, 1994 |
| SK Rapid Wien | 4 | 1 | 1986, 1987, 1988, 2008 | 1995, 1996 |
| SK Sturm Graz | 3 | 2 | 1996, 1998, 1999 | 1997, 2002 |
| SV Austria Salzburg | 3 | 0 | 1994, 1995, 1997 | – |
| Grazer AK | 2 | 1 | 2000, 2002 | 2004 |
| VfB Admira Wacker Mödling | 1 | 1 | 1989 | 1992 |
| FC Kärnten | 1 | 1 | 2001 | 2003 |
| FC Swarovski Tirol / FC Tirol Innsbruck | 0* | 6 | – | 1987, 1989, 1990, 1993, 2000, 2001 |
| Kremser SC | 0 | 1 | – | 1988 |
| SV Stockerau | 0 | 1 | – | 1991 |
| SV Ried | 0 | 1 | – | 1998 |
| LASK Linz | 0 | 1 | – | 1999 |
| SV Horn | 0 | 1 | – | 2008 |
Question:
how many years was sk sturm graz winner?
Answer:
3