|Season|Average|High|Low|Season tickets|
|---|---|---|---|---|
|2001–02 Serie A|17,956|27,498|14,704|12,156|
|2002–03 Serie A|16,306|25,603|12,980|11,544|
|2003–04 Serie A|15,904|23,663|11,463|10,439|
|2004–05 Serie A|14,044|23,010|10,711|9,923|
|2005–06 Serie A|14,372|23,116|11,575|10,639|
|2006–07 Serie A|14,644|20,488|11,946|11,120|
|2007–08 Serie A|15,427|25,149|11,890|11,386|
|2008–09 Serie B|10,031|12,265|9,261||
|2009–10 Serie A|17,061|21,323|11,870|13,691|
|2010–11 Serie A|14,524|19,615|11,975|10,578|
|2011–12 Serie A|13,646|19,481|10,800|9,620|
|2012–13 Serie A|12,740|19,073|9,627|10,546|

Question: how many seasons had average attendance of at least 15,000 at the stadio ennio tardini?
Answer: 5