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:
North Carolina FC U23
Table title:
Year-by-year
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Division </th><th colspan=1 rowspan=1 > League </th><th colspan=1 rowspan=1 > Regular Season </th><th colspan=1 rowspan=1 > Playoffs </th><th colspan=1 rowspan=1 > Open Cup </th></tr>
<tr> <th colspan=6 rowspan=1 > Raleigh CASL Elite </th></tr>
<tr> <td colspan=1 rowspan=1 > 2002 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 2nd, Mid Atlantic </td><td colspan=1 rowspan=1 > Conference Finals </td><td colspan=1 rowspan=1 > 2nd round </td></tr>
<tr> <td colspan=1 rowspan=1 > 2003 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 3rd, Mid Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > 2nd round </td></tr>
<tr> <td colspan=1 rowspan=1 > 2004 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 4th, Mid Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2005 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 3rd, Mid Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2006 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 4th, South Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <th colspan=6 rowspan=1 > Carolina RailHawks U23s </th></tr>
<tr> <td colspan=1 rowspan=1 > 2007 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 5th, Southeast </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <th colspan=6 rowspan=1 > Cary Clarets </th></tr>
<tr> <td colspan=1 rowspan=1 > 2008 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 3rd, Southeast </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2009 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > USL PDL </td><td colspan=1 rowspan=1 > 3rd, Mid Atlantic </td><td colspan=1 rowspan=1 > National Semi-finals </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2010 </td><td colspan=5 rowspan=1 > On Hiatus </td></tr>
<tr> <th colspan=6 rowspan=1 > Carolina RailHawks U23s </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2011 </td><td class="highlighted"  colspan=1 rowspan=1 > USASA </td><td class="highlighted"  colspan=1 rowspan=1 > Region III U-23's Championship </td><td colspan=1 rowspan=1 > National Championship </td><td class="highlighted"  colspan=1 rowspan=1 > National Champions </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2012 </td><td colspan=1 rowspan=1 > USASA </td><td colspan=1 rowspan=1 > Region III U-23's Championship </td><td colspan=1 rowspan=1 > National Championship </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2013 </td><td class="highlighted"  colspan=1 rowspan=1 > USASA </td><td class="highlighted"  colspan=1 rowspan=1 > Region III U-23's Championship </td><td colspan=1 rowspan=1 > National Championship </td><td class="highlighted"  colspan=1 rowspan=1 > National Champions </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > NPSL </td><td colspan=1 rowspan=1 > 3rd, South Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2015 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > NPSL </td><td colspan=1 rowspan=1 > 3rd, South Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <th colspan=6 rowspan=1 > Carolina RailHawks NPSL </th></tr>
<tr> <td colspan=1 rowspan=1 > 2016 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > NPSL </td><td colspan=1 rowspan=1 > 3rd, South Atlantic </td><td colspan=1 rowspan=1 > South Atlantic Conference Semi-final </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <th colspan=6 rowspan=1 > North Carolina FC U23 </th></tr>
<tr> <td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > PDL </td><td colspan=1 rowspan=1 > 7th, South Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
<tr> <td colspan=1 rowspan=1 > 2018 </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > PDL </td><td colspan=1 rowspan=1 > 2nd, South Atlantic </td><td colspan=1 rowspan=1 > Did not qualify </td><td colspan=1 rowspan=1 > Did not qualify </td></tr>
</table>
Question:
In what years did North Carolina win the USASA U-23's National Championship?
Answer:
In 2011 and 2013 the team won the USASA U-23's National Championship.