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:
Gold Coast Suns
Table title:
Membership base and sponsorship
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Members </th><th colspan=1 rowspan=1 > Change from previous season </th><th colspan=1 rowspan=1 > Finishing position </th><th colspan=1 rowspan=1 > Average home crowd </th><th colspan=1 rowspan=1 > Profit (Loss) </th><th colspan=1 rowspan=1 > Major Sponsor </th></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 > 14,064 </td><td colspan=1 rowspan=1 > — </td><td colspan=1 rowspan=1 > 17th </td><td colspan=1 rowspan=1 > 19,169 </td><td colspan=1 rowspan=1 > Undisclosed profit </td><td colspan=1 rowspan=1 > HOSTPLUS, Virgin Australia </td></tr>
<tr> <td colspan=1 rowspan=1 > 2012 </td><td colspan=1 rowspan=1 > 11,204 </td><td colspan=1 rowspan=1 > 2,860 </td><td colspan=1 rowspan=1 > 17th </td><td colspan=1 rowspan=1 > 13,645 </td><td colspan=1 rowspan=1 > ($1,401,168) </td><td colspan=1 rowspan=1 > HOSTPLUS, Virgin Australia </td></tr>
<tr> <td colspan=1 rowspan=1 > 2013 </td><td colspan=1 rowspan=1 > 12,502 </td><td colspan=1 rowspan=1 > 1,298 </td><td colspan=1 rowspan=1 > 14th </td><td colspan=1 rowspan=1 > 13,907 </td><td colspan=1 rowspan=1 > $62,533 </td><td colspan=1 rowspan=1 > HOSTPLUS, Virgin Australia </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > 13,478 </td><td colspan=1 rowspan=1 > 976 </td><td class="highlighted"  colspan=1 rowspan=1 > 12th </td><td colspan=1 rowspan=1 > 16,092 </td><td colspan=1 rowspan=1 > $1,062,082 </td><td colspan=1 rowspan=1 > Fiat Automobiles, HOSTPLUS </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2015 </td><td class="highlighted"  colspan=1 rowspan=1 > 13,643 </td><td colspan=1 rowspan=1 > 165 </td><td colspan=1 rowspan=1 > 16th </td><td colspan=1 rowspan=1 > 12,360 </td><td colspan=1 rowspan=1 > ($330,870) </td><td colspan=1 rowspan=1 > Fiat Automobiles, HOSTPLUS </td></tr>
<tr> <td colspan=1 rowspan=1 > 2016 </td><td colspan=1 rowspan=1 > 12,854 </td><td colspan=1 rowspan=1 > 789 </td><td colspan=1 rowspan=1 > 15th </td><td colspan=1 rowspan=1 > 11,561 </td><td colspan=1 rowspan=1 > ($2,941,965) </td><td colspan=1 rowspan=1 > Fiat Automobiles, HOSTPLUS </td></tr>
<tr> <td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > 11,665 </td><td colspan=1 rowspan=1 > 1,189 </td><td colspan=1 rowspan=1 > 17th </td><td colspan=1 rowspan=1 > 13,663 </td><td colspan=1 rowspan=1 > 19,219 </td><td colspan=1 rowspan=1 > HOSTPLUS </td></tr>
<tr> <td colspan=1 rowspan=1 > 2018 </td><td colspan=1 rowspan=1 > 12,108¹ </td><td colspan=1 rowspan=1 > 443 </td><td colspan=1 rowspan=1 > 17th </td><td colspan=1 rowspan=1 > 13,547 </td><td colspan=1 rowspan=1 > $1,160,912 </td><td colspan=1 rowspan=1 > Cover-More, HOSTPLUS </td></tr>
</table>
Question:
What year were the peaks in membership and position for the Suns?
Answer:
The Suns had a highest membership of 13,643 (achieved in 2015) and a highest position of 12 (achieved in 2014).