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:
Croydon Central (UK Parliament constituency)
Table title:
Members of Parliament
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Election </th><th colspan=1 rowspan=1 > Member </th><th colspan=1 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Feb 1974 </td><td colspan=1 rowspan=1 > John Moore </td><td colspan=1 rowspan=1 > Conservative </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > Sir Paul Beresford </td><td colspan=1 rowspan=1 > Conservative </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1997 </td><td colspan=1 rowspan=1 > Geraint Davies </td><td colspan=1 rowspan=1 > Labour </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2005 </td><td colspan=1 rowspan=2 > Andrew Pelling </td><td colspan=1 rowspan=1 > Conservative </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2007 </td><td colspan=1 rowspan=1 > Independent </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 2010 </td><td colspan=1 rowspan=1 > Gavin Barwell </td><td colspan=1 rowspan=1 > Conservative </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > 2017 </td><td class="highlighted"  colspan=1 rowspan=1 > Sarah Jones </td><td class="highlighted"  colspan=1 rowspan=1 > Labour </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
When did Croydon Central become a constituency and who represented them in 2017?
Answer:
Croydon Central has been a constituency since 1974 and is represented in the UK Parliament, in 2017, by Labour MP Sarah Jones.