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:
Éva Joó
Table title:
Olympic results
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Event </th><th colspan=1 rowspan=1 > 1988 </th><th colspan=1 rowspan=1 > 1992 </th><th colspan=1 rowspan=1 > 1996 </th><th colspan=1 rowspan=1 > 2004 </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 50 metre rifle three positions </td><td class="highlighted"  colspan=1 rowspan=1 > 20th 576 </td><td colspan=1 rowspan=1 > 8th 580+93.6 </td><td colspan=1 rowspan=1 > 20th 576 </td><td colspan=1 rowspan=1 > 23rd 570 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 10 metre air rifle </td><td class="highlighted"  colspan=1 rowspan=1 > 11th 392 </td><td colspan=1 rowspan=1 > 15th 390 </td><td colspan=1 rowspan=1 > 7th 393+101.5 </td><td colspan=1 rowspan=1 > 14th 394 </td></tr>
</table>
Question:
How did Joo perform in the 1988 Summer Olympics?
Answer:
At the 1988 Summer Olympics, Joo made an appearance finishing eleventh in the air rifle and twentieth in the rifle three positions with scores of 392 and 576.