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:
List of State Basketball League champions
Table title:
Pre-SBL champions
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Result </th><th colspan=1 rowspan=1 > Ref </th></tr>
<tr> <td colspan=1 rowspan=1 > 1972 </td><td colspan=1 rowspan=1 > Perth (scores unavailable) </td><td colspan=1 rowspan=17 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1973 </td><td colspan=1 rowspan=1 > Perth (scores unavailable) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1974 </td><td colspan=1 rowspan=1 > Swan Districts 80 d Stirling 67 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1975 </td><td colspan=1 rowspan=1 > Stirling 69 d Perth 68 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1976 </td><td colspan=1 rowspan=1 > Perth d Stirling (scores unavailable) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1977 </td><td colspan=1 rowspan=1 > Perth 80 d Scarborough City 78 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > Stirling 69 d Melville 65 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1979 </td><td colspan=1 rowspan=1 > Scarborough City 96 d Stirling 87 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1980 </td><td class="highlighted"  colspan=1 rowspan=1 > East Perth 80 d Stirling 67 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1981 </td><td colspan=1 rowspan=1 > Stirling 78 d Scarborough City 62 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > Stirling 112 d Cockburn 96 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1983 </td><td class="highlighted"  colspan=1 rowspan=1 > East Perth 86 d Stirling 84 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1984 </td><td colspan=1 rowspan=1 > Cockburn 86 d Perth 78 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > Swan Districts 86 d East Perth 71 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > Wanneroo 103 d East Perth 78 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > Tangney 99 d Stirling 88 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1988 </td><td class="highlighted"  colspan=1 rowspan=1 > East Perth 84 d Wanneroo 71 </td></tr>
</table>
Question:
How many times did East Perth Eagles win Pre-SBL champion titles and when were the wins?
Answer:
The East Perth Eagles won three Pre-SBL champions titles in 1980, 1983, and 1988.