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:
Rwanda Defence Force
Table title:
Aircraft
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Type </th><th colspan=1 rowspan=1 > Manufacturer </th><th colspan=1 rowspan=1 > Origin </th><th colspan=1 rowspan=1 > Class </th><th colspan=1 rowspan=1 > Role </th><th colspan=1 rowspan=1 > In service </th><th colspan=1 rowspan=1 > Photo </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Mi-24 </td><td class="highlighted"  colspan=1 rowspan=1 > Mil </td><td colspan=1 rowspan=1 > Soviet Union </td><td class="highlighted"  colspan=1 rowspan=1 > Helicopter </td><td colspan=1 rowspan=1 > Attack </td><td class="highlighted"  colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > - </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Mi-8/17 </td><td class="highlighted"  colspan=1 rowspan=1 > Mil </td><td colspan=1 rowspan=1 > Soviet Union </td><td class="highlighted"  colspan=1 rowspan=1 > Helicopter </td><td colspan=1 rowspan=1 > Transport </td><td class="highlighted"  colspan=1 rowspan=1 > 12 </td><td colspan=1 rowspan=1 > - </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > SA.342 Gazelle </td><td class="highlighted"  colspan=1 rowspan=1 > Aerospatiale </td><td colspan=1 rowspan=1 > France </td><td class="highlighted"  colspan=1 rowspan=1 > Helicopter </td><td colspan=1 rowspan=1 > Utility </td><td class="highlighted"  colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > - </td></tr>
</table>
Question:
How many helicopters does the Rwanda Defence Force have?
Answer:
The Rwandan Air Force has twelve Mil Mi-8/17 helicopters, five Mil Mi-24, and four Aerospatiale Gazelle SA.342.