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:
Margaret Ngotho
Table title:
International competitions
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> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > World Cross Country Championships </td><td colspan=1 rowspan=1 > Auckland, New Zealand </td><td colspan=1 rowspan=1 > 96th </td><td colspan=1 rowspan=1 > Senior race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 1990 </td><td class="highlighted"  colspan=1 rowspan=2 > African Championships </td><td colspan=1 rowspan=2 > Cairo, Egypt </td><td class="highlighted"  colspan=1 rowspan=1 > 3rd </td><td class="highlighted"  colspan=1 rowspan=1 > 1500 metres </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 3rd </td><td class="highlighted"  colspan=1 rowspan=1 > 3000 metres </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=2 > 1991 </td><td colspan=1 rowspan=2 > World Cross Country Championships </td><td colspan=1 rowspan=2 > Antwerp, Belgium </td><td colspan=1 rowspan=1 > 9th </td><td colspan=1 rowspan=1 > Senior race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Team race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=2 > 1995 </td><td colspan=1 rowspan=2 > World Cross Country Championships </td><td colspan=1 rowspan=2 > Durham, United Kingdom </td><td colspan=1 rowspan=1 > 4th </td><td colspan=1 rowspan=1 > Senior race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > Team race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=2 > 2000 </td><td colspan=1 rowspan=2 > World Cross Country Championships </td><td colspan=1 rowspan=2 > Vilamoura, Portugal </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > Short race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 4th </td><td colspan=1 rowspan=1 > Team race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=2 > 2001 </td><td colspan=1 rowspan=2 > World Cross Country Championships </td><td colspan=1 rowspan=2 > Oostende, Belgium </td><td colspan=1 rowspan=1 > 10th </td><td colspan=1 rowspan=1 > Short race </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > Team race </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What year was Margaret Ngotho the double bronze medalist in the 1500 metres and 3000 metres events at the African Championships?
Answer:
Margaret Ngotho was the double bronze medalist in the 1500 metres and 3000 metres events at the 1990 African Championships.