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:
Anne Marie Letko
Table title:
Achievements
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Competition </th><th colspan=1 rowspan=1 > Venue </th><th colspan=1 rowspan=1 > Position </th><th colspan=1 rowspan=1 > Event </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <th class="highlighted"  colspan=6 rowspan=1 > Representing the United States </th></tr>
<tr> <td colspan=1 rowspan=2 > 1991 </td><td colspan=1 rowspan=1 > Universiade </td><td colspan=1 rowspan=1 > Sheffield, United Kingdom </td><td colspan=1 rowspan=1 > 1st </td><td class="highlighted"  colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > 32:36.87 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Tokyo, Japan </td><td colspan=1 rowspan=1 > — </td><td class="highlighted"  colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > DNF </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > World Cup </td><td colspan=1 rowspan=1 > Havana, Cuba </td><td colspan=1 rowspan=1 > 5th </td><td class="highlighted"  colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > 34:14.18 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1993 </td><td class="highlighted"  colspan=1 rowspan=1 > World Championships </td><td class="highlighted"  colspan=1 rowspan=1 > Stuttgart, Germany </td><td colspan=1 rowspan=1 > 8th </td><td class="highlighted"  colspan=1 rowspan=1 > 10,000 m </td><td class="highlighted"  colspan=1 rowspan=1 > 31:37.36 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Gothenburg, Sweden </td><td colspan=1 rowspan=1 > 14th </td><td colspan=1 rowspan=1 > 10,000 m </td><td colspan=1 rowspan=1 > 32:22.54 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 > Olympic Games </td><td colspan=1 rowspan=1 > Atlanta, United States </td><td colspan=1 rowspan=1 > 10th </td><td colspan=1 rowspan=1 > Marathon </td><td colspan=1 rowspan=1 > 2:31:30 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2000 </td><td colspan=1 rowspan=1 > Olympic Games </td><td colspan=1 rowspan=1 > Sydney, Australia </td><td colspan=1 rowspan=1 > 32nd (h) </td><td colspan=1 rowspan=1 > 5000 m </td><td colspan=1 rowspan=1 > 15:47.78 </td></tr>
</table>
Question:
How fast was Anne Marie Letko's time at the 1993 World Championships in Stuttgart? 
Answer:
Anne Marie Letko's 31:37.36 at the 1993 World Championships in Stuttgart, Germany was the fourth and fastest 10,000 representing the United States.