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:
Giancarlo González
Table title:
Club
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 > Club </th><th colspan=1 rowspan=2 > Season </th><th colspan=3 rowspan=1 > League </th><th colspan=2 rowspan=1 > Cup </th><th colspan=2 rowspan=1 > Continental </th><th colspan=2 rowspan=1 > Total </th></tr>
<tr> <th colspan=1 rowspan=1 > Division </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th></tr>
<tr> <td colspan=1 rowspan=5 > Alajuelense </td><td colspan=1 rowspan=1 > 2008–2009 </td><td colspan=1 rowspan=4 > Costa Rican Primera División </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td></tr>
<tr> <td colspan=1 rowspan=1 > 2009–2010 </td><td colspan=1 rowspan=1 > 28 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2010–2011 </td><td colspan=1 rowspan=1 > 34 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011–2012 </td><td colspan=1 rowspan=1 > 29 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > ? </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <th colspan=2 rowspan=1 > Total </th><th colspan=1 rowspan=1 > 91 </th><th colspan=1 rowspan=1 > 6 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 6 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 97 </th><th colspan=1 rowspan=1 > 6 </th></tr>
<tr> <td colspan=1 rowspan=3 > Vålerenga </td><td colspan=1 rowspan=1 > 2012 </td><td colspan=1 rowspan=2 > Tippeligaen </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2013 </td><td colspan=1 rowspan=1 > 25 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 29 </td><td colspan=1 rowspan=1 > 2 </td></tr>
<tr> <th colspan=2 rowspan=1 > Total </th><th colspan=1 rowspan=1 > 37 </th><th colspan=1 rowspan=1 > 2 </th><th colspan=1 rowspan=1 > 4 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 41 </th><th colspan=1 rowspan=1 > 2 </th></tr>
<tr> <td colspan=1 rowspan=1 > Columbus Crew </td><td colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > Major League Soccer </td><td colspan=1 rowspan=1 > 17 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 17 </td><td colspan=1 rowspan=1 > 1 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=4 > Palermo </td><td colspan=1 rowspan=1 > 2014–15 </td><td class="highlighted"  colspan=1 rowspan=3 > Serie A </td><td colspan=1 rowspan=1 > 28 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 28 </td><td colspan=1 rowspan=1 > 1 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2015–16 </td><td colspan=1 rowspan=1 > 35 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 36 </td><td colspan=1 rowspan=1 > 1 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2016–17 </td><td class="highlighted"  colspan=1 rowspan=1 > 21 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 21 </td><td colspan=1 rowspan=1 > 1 </td></tr>
<tr> <th colspan=2 rowspan=1 > Total </th><th colspan=1 rowspan=1 > 84 </th><th colspan=1 rowspan=1 > 4 </th><th colspan=1 rowspan=1 > 1 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 85 </th><th colspan=1 rowspan=1 > 4 </th></tr>
<tr> <td colspan=1 rowspan=3 > Bologna </td><td colspan=1 rowspan=1 > 2017–18 </td><td colspan=1 rowspan=2 > Serie A </td><td colspan=1 rowspan=1 > 22 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 23 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2018–19 </td><td colspan=1 rowspan=1 > 9 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=2 rowspan=1 > — </td><td colspan=1 rowspan=1 > 10 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <th colspan=2 rowspan=1 > Total </th><th colspan=1 rowspan=1 > 31 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 2 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 33 </th><th colspan=1 rowspan=1 > 0 </th></tr>
<tr> <th colspan=3 rowspan=1 > Career Total </th><th colspan=1 rowspan=1 > 260 </th><th colspan=1 rowspan=1 > 13 </th><th colspan=1 rowspan=1 > 7 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 6 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 273 </th><th colspan=1 rowspan=1 > 13 </th></tr>
</table>
Question:
How many appearances did González make in the 2016-2017 season with Palermo in the Serie A?
Answer:
González made 21 appearances in the 2016–17 season with Palermo in the Serie A.