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:
2005 Zimbabwean Senate election
Table title:
Election results
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Parties </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > Seats </th></tr>
<tr> <td colspan=1 rowspan=1 > Zimbabwe African National Union – Patriotic Front </td><td colspan=1 rowspan=1 > 449,860 </td><td colspan=1 rowspan=1 > 73.71 </td><td colspan=1 rowspan=1 > 43 </td></tr>
<tr> <td colspan=1 rowspan=1 > Movement for Democratic Change </td><td colspan=1 rowspan=1 > 123,628 </td><td colspan=1 rowspan=1 > 20.26 </td><td colspan=1 rowspan=1 > 7 </td></tr>
<tr> <td colspan=1 rowspan=1 > Zimbabwe African National Union – Ndonga </td><td colspan=1 rowspan=1 > 11,023 </td><td colspan=1 rowspan=1 > 1.81 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Independents </td><td colspan=1 rowspan=1 > 9,689 </td><td colspan=1 rowspan=1 > 1.59 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Zimbabwe Youth in Alliance </td><td colspan=1 rowspan=1 > 6,919 </td><td colspan=1 rowspan=1 > 1.13 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Peace Action is Freedom for All </td><td colspan=1 rowspan=1 > 5,278 </td><td colspan=1 rowspan=1 > 0.86 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > African National Party </td><td colspan=1 rowspan=1 > 3,585 </td><td colspan=1 rowspan=1 > 0.59 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Zimbabwe African People's Union – Federal Party </td><td colspan=1 rowspan=1 > 213 </td><td colspan=1 rowspan=1 > 0.03 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > Multi-Racial Open Party – Christian Democrats </td><td colspan=1 rowspan=1 > 100 </td><td colspan=1 rowspan=1 > 0.02 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=3 rowspan=1 > Ex-officio members (Chiefs) </td><td colspan=1 rowspan=1 > 10 </td></tr>
<tr> <td colspan=3 rowspan=1 > Presidential appointees </td><td colspan=1 rowspan=1 > 6 </td></tr>
<tr> <td colspan=1 rowspan=1 > Total (turnout 19.5%) </td><td colspan=1 rowspan=1 > 610,295 </td><td colspan=1 rowspan=1 > 100.00 </td><td colspan=1 rowspan=1 > 66 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Registered voters </td><td class="highlighted"  colspan=1 rowspan=1 > 3,239,574 </td><td colspan=2 rowspan=3 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Total votes cast </td><td class="highlighted"  colspan=1 rowspan=1 > 631,347 </td></tr>
<tr> <td colspan=1 rowspan=1 > Invalid votes </td><td colspan=1 rowspan=1 > 21,052 </td></tr>
<tr> <td colspan=4 rowspan=1 > Source: African Elections Database </td></tr>
</table>
Question:
How many registered voters were there for the 2005 Zimbabwean Senate election, and how many total votes were cast?
Answer:
At the 2005 Zimbabwean Senate election, there were 3,239,574 registered voters, of which 631,347 voted.