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:
Alamgir (actor)
Table title:
Awards and achievements
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Award </th><th colspan=1 rowspan=1 > Category </th><th colspan=1 rowspan=1 > Film </th><th colspan=1 rowspan=1 > Result </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1985 </td><td class="highlighted"  colspan=1 rowspan=1 > National Film Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actor </td><td class="highlighted"  colspan=1 rowspan=1 > Ma o Chele </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1987 </td><td class="highlighted"  colspan=1 rowspan=1 > National Film Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actor </td><td class="highlighted"  colspan=1 rowspan=1 > Opekkha </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1989 </td><td class="highlighted"  colspan=1 rowspan=1 > National Film Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actor </td><td class="highlighted"  colspan=1 rowspan=1 > Khati Puron </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1990 </td><td class="highlighted"  colspan=1 rowspan=1 > National Film Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actor </td><td class="highlighted"  colspan=1 rowspan=1 > Moroner Pore </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1991 </td><td class="highlighted"  colspan=1 rowspan=1 > National Film Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actor </td><td class="highlighted"  colspan=1 rowspan=1 > Pita Mata Sontan </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1992 </td><td class="highlighted"  colspan=1 rowspan=1 > National Film Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actor </td><td class="highlighted"  colspan=1 rowspan=1 > Andho Biswas </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1994 </td><td class="highlighted"  colspan=1 rowspan=1 > National Film Award </td><td class="highlighted"  colspan=1 rowspan=1 > Best Actor </td><td class="highlighted"  colspan=1 rowspan=1 > Desh Premik </td><td class="highlighted"  colspan=1 rowspan=1 > Won </td></tr>
</table>
Question:
How many times has Alamgir won the Best Actor National Film Award for a film, and in which years?
Answer:
Alamgir won Bangladesh National Film Award for Best Actor seven times for his roles in the films, Ma O Chhele (1985), Apeksha (1987), Khotipuron (1989), Moroner Pore (1990), Pita Mata Santan (1991), Andha Biswas (1992) and Desh Premik (1994).