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:
Canning Purba
Table title:
Members of Legislative Assembly
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Election Year </th><th colspan=1 rowspan=1 > Constituency </th><th colspan=1 rowspan=1 > Name of M.L.A. </th><th colspan=1 rowspan=1 > Party Affiliation </th></tr>
<tr> <td colspan=1 rowspan=1 > 1957 </td><td colspan=1 rowspan=1 > Canning </td><td colspan=1 rowspan=1 > Khagendra Nath Naskar </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Abdus Shukur </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1962 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Khagendra Nath Naskar </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1967 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > A.C.Halder </td><td colspan=1 rowspan=1 > Bangla Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1969 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Narayan Naskar </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1971 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Gobinda Chandra Naskar </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td colspan=1 rowspan=1 > 1972 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Gobinda Chandra Naskar </td><td colspan=1 rowspan=1 > Indian National Congress </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1977 </td><td class="highlighted"  colspan=1 rowspan=1 > Canning Purba </td><td class="highlighted"  colspan=1 rowspan=1 > Abdur Razzak Molla </td><td class="highlighted"  colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Abdur Razzak Molla </td><td class="highlighted"  colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Abdur Razzak Molla </td><td class="highlighted"  colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1991 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Abdur Razzak Molla </td><td class="highlighted"  colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Abdur Razzak Molla </td><td class="highlighted"  colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2001 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Abdur Razzak Molla </td><td class="highlighted"  colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2006 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Abdur Razzak Molla </td><td class="highlighted"  colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Abdur Razzak Molla </td><td colspan=1 rowspan=1 > Communist Party of India (Marxist) </td></tr>
<tr> <td colspan=1 rowspan=1 > 2016 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Saokat Molla </td><td colspan=1 rowspan=1 > All India Trinamool Congress </td></tr>
</table>
Question:
How long was a Communist Party of India (Marxist) candidate a Member of Legislative Assembly?
Answer:
Abdur Razzak Molla of the Communist Party of India (Marxist) has represented Canning Purba from 1977 to 2011.