Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Spokane Shock
Table title:
af2 (2006–2009)
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Total Att </th><th colspan=1 rowspan=1 > Average </th><th colspan=1 rowspan=1 > League Rank </th><th colspan=1 rowspan=1 > Sellouts / Games </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2006 (af2) </td><td class="highlighted"  colspan=1 rowspan=1 > 79,213 </td><td colspan=1 rowspan=1 > 9,902 </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 4 of 8 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2007 (af2) </td><td class="highlighted"  colspan=1 rowspan=1 > 84,556 </td><td colspan=1 rowspan=1 > 10,570 </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 8 of 8 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2008 (af2) </td><td class="highlighted"  colspan=1 rowspan=1 > 84,705 </td><td colspan=1 rowspan=1 > 10,588 </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 8 of 8 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2009 (af2) </td><td class="highlighted"  colspan=1 rowspan=1 > 83,306 </td><td colspan=1 rowspan=1 > 10,413 </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 5 of 8 </td></tr>
<tr> <td colspan=1 rowspan=1 > Total </td><td colspan=1 rowspan=1 > 331,780 </td><td colspan=1 rowspan=1 > 10,368 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 25 of 32 </td></tr>
</table>
Question:
What is the total attendance in af2 history?
Answer:
The attendance in af2 was 83,306 (2009), 84,705 (2008), 84,556 (2007), and 79,213 (2006).