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:
2017 New York City mayoral election
Table title:
Results
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Democratic </td><td class="highlighted"  colspan=1 rowspan=1 > Bill De Blasio (incumbent) </td><td colspan=1 rowspan=1 > 726,361 </td><td class="highlighted"  colspan=1 rowspan=1 > 66.5% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Republican </td><td class="highlighted"  colspan=1 rowspan=1 > Nicole Malliotakis </td><td colspan=1 rowspan=1 > 303,742 </td><td colspan=1 rowspan=1 > 27.8% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Reform </td><td colspan=1 rowspan=1 > Sal Albanese </td><td colspan=1 rowspan=1 > 22,891 </td><td colspan=1 rowspan=1 > 2.1% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Green </td><td colspan=1 rowspan=1 > Akeem Browder </td><td colspan=1 rowspan=1 > 15,763 </td><td colspan=1 rowspan=1 > 1.4% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Michael Tolkin </td><td colspan=1 rowspan=1 > 10,762 </td><td colspan=1 rowspan=1 > 1.0% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 > Bo Dietl </td><td colspan=1 rowspan=1 > 10,592 </td><td colspan=1 rowspan=1 > 1.0% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Libertarian </td><td colspan=1 rowspan=1 > Aaron Commey </td><td colspan=1 rowspan=1 > 2,635 </td><td colspan=1 rowspan=1 > 0.2% </td></tr>
<tr> <th colspan=3 rowspan=1 > Total votes </th><td colspan=1 rowspan=1 > 1,092,746 </td><td colspan=1 rowspan=1 > 100.0% </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=4 rowspan=1 > Democratic hold </td></tr>
</table>
Question:
Who won the 2017 New York City mayoral election?
Answer:
Incumbent Democrat Bill de Blasio won election with 66.5% of the vote against Republican Nicole Malliotakis.