|Season|Team|Country|Competition|Matches|Goals|
|---|---|---|---|---|---|
|1999|Djurgårdens IF|Sweden|Allsvenskan|15|1|
|2000|Djurgårdens IF|Sweden|Superettan|15|3|
|2001|Djurgårdens IF|Sweden|Allsvenskan|22|7|
|2002–2003|Grazer AK|Austria|Bundesliga|24|6|
|2003|Denizlispor|Turkey|Süper Lig|3|0|
|2003|Landskrona BoIS|Sweden|Allsvenskan|11|3|
|2004|Landskrona BoIS|Sweden|Allsvenskan|22|4|
|2005|Djurgårdens IF|Sweden|Allsvenskan|24|12|
|2006|Djurgårdens IF|Sweden|Allsvenskan|17|6|
|2007|Djurgårdens IF|Sweden|Allsvenskan|23|4|
|2008|Djurgårdens IF|Sweden|Allsvenskan|29|6|
|2008–09|Esbjerg fB|Denmark|Superliga|6|0|
|2010|AaB|Denmark|Superliga|3|1|
|2011|Assyriska FF|Sweden|Superettan|19|5|
|Total|Total|Total|Total|233|58|

Question: how many teams had above 20 matches in the season?
Answer: 6