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:
Alliance of Conservatives and Reformists in Europe
Table title:
Regional partners
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Country </th><th colspan=1 rowspan=1 > Political party </th><th colspan=1 rowspan=1 > National Legislators </th><th colspan=1 rowspan=1 > Joined </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Australia </td><td class="highlighted"  colspan=1 rowspan=1 > Liberal Party of Australia (Coalition with the National Party of Australia) </td><td colspan=1 rowspan=1 > 76 / 150 </td><td class="highlighted"  colspan=1 rowspan=1 > 2014 </td></tr>
<tr> <td colspan=1 rowspan=1 > Canada </td><td colspan=1 rowspan=1 > Conservative Party of Canada </td><td colspan=1 rowspan=1 > 98 / 338 </td><td colspan=1 rowspan=1 > 2012 </td></tr>
<tr> <td colspan=1 rowspan=1 > Colombia </td><td colspan=1 rowspan=1 > Democratic Center </td><td colspan=1 rowspan=1 > 32 / 172 </td><td colspan=1 rowspan=1 > 2017 </td></tr>
<tr> <td colspan=1 rowspan=1 > Israel </td><td class="highlighted"  colspan=1 rowspan=1 > Likud </td><td colspan=1 rowspan=1 > 30 / 120 </td><td class="highlighted"  colspan=1 rowspan=1 > 2016 </td></tr>
<tr> <td colspan=1 rowspan=1 > Kenya </td><td colspan=1 rowspan=1 > Jubilee Party </td><td colspan=1 rowspan=1 > 171 / 349 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Maldives </td><td colspan=1 rowspan=1 > Progressive Party of Maldives </td><td colspan=1 rowspan=1 > 47 / 85 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Morocco </td><td class="highlighted"  colspan=1 rowspan=1 > Istiqlal Party </td><td colspan=1 rowspan=1 > 46 / 395 </td><td class="highlighted"  colspan=1 rowspan=1 > 2014 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > New Zealand </td><td class="highlighted"  colspan=1 rowspan=1 > New Zealand National Party </td><td colspan=1 rowspan=1 > 56 / 120 </td><td class="highlighted"  colspan=1 rowspan=1 > 2014 </td></tr>
<tr> <td colspan=1 rowspan=1 > Tanzania </td><td colspan=1 rowspan=1 > Chadema </td><td colspan=1 rowspan=1 > 63 / 293 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > Tunisia </td><td class="highlighted"  colspan=1 rowspan=1 > Afek Tounes </td><td colspan=1 rowspan=1 > 8 / 217 </td><td class="highlighted"  colspan=1 rowspan=1 > 2015 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > United States </td><td class="highlighted"  colspan=1 rowspan=1 > Republican Party </td><td colspan=1 rowspan=1 > 53 / 100199 / 435 </td><td class="highlighted"  colspan=1 rowspan=1 > 2014 </td></tr>
</table>
Question:
When did the most Regional partners join the Alliance of Conservatives and Reformists in Europe?
Answer:
The Liberal Party of Australia, Istiqlal Party of Morocco, New Zealand National Party, and Republican Party of the United States joined as Regional partners in 2014.