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:
1973 Cameroonian parliamentary election
Table title:
Results
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > Seats </th><th colspan=1 rowspan=1 > +/– </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Cameroonian National Union </td><td colspan=1 rowspan=1 > 3,293,428 </td><td colspan=1 rowspan=1 > 100 </td><td class="highlighted"  colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > +70 </td></tr>
<tr> <td colspan=1 rowspan=1 > Invalid/blank votes </td><td colspan=1 rowspan=1 > 1,577 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td></tr>
<tr> <td colspan=1 rowspan=1 > Total </td><td colspan=1 rowspan=1 > 3,295,005 </td><td colspan=1 rowspan=1 > 100 </td><td colspan=1 rowspan=1 > 120 </td><td colspan=1 rowspan=1 > +70 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Registered voters/turnout </td><td colspan=1 rowspan=1 > 3,348,989 </td><td class="highlighted"  colspan=1 rowspan=1 > 98.4 </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > – </td></tr>
<tr> <td colspan=5 rowspan=1 > Source: Nohlen et al. </td></tr>
</table>
Question:
How did the CNU perform during, and with how much turnout, the 1973 Cameroonian parliamentary election?
Answer:
In the 1973 Cameroonian parliamentary election, the CNU won all available seats, with a turnout of 98.4%.