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:
1996 NCAA Division I-AA football season
Table title:
Conference changes and new programs
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > School </th><th colspan=1 rowspan=1 > 1995 Conference </th><th colspan=1 rowspan=1 > 1996 Conference </th></tr>
<tr> <td colspan=1 rowspan=1 > Boise State </td><td colspan=1 rowspan=1 > Big Sky </td><td colspan=1 rowspan=1 > Big West (I-A) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Cal State Northridge </td><td class="highlighted"  colspan=1 rowspan=1 > American West </td><td class="highlighted"  colspan=1 rowspan=1 > Big Sky </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Cal Poly </td><td class="highlighted"  colspan=1 rowspan=1 > American West </td><td class="highlighted"  colspan=1 rowspan=1 > I-AA Independent </td></tr>
<tr> <td colspan=1 rowspan=1 > Central Connecticut State </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > Northeast </td></tr>
<tr> <td colspan=1 rowspan=1 > Central Florida </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > I-A Independent </td></tr>
<tr> <td colspan=1 rowspan=1 > Eastern Illinois </td><td colspan=1 rowspan=1 > Gateway </td><td colspan=1 rowspan=1 > Ohio Valley </td></tr>
<tr> <td colspan=1 rowspan=1 > Fairfield </td><td colspan=1 rowspan=1 > New Program </td><td colspan=1 rowspan=1 > MAAC </td></tr>
<tr> <td colspan=1 rowspan=1 > Idaho </td><td colspan=1 rowspan=1 > Big Sky </td><td colspan=1 rowspan=1 > Big West (I-A) </td></tr>
<tr> <td colspan=1 rowspan=1 > Jacksonville State </td><td colspan=1 rowspan=1 > D-II Independent </td><td colspan=1 rowspan=1 > Southland (I-AA) </td></tr>
<tr> <td colspan=1 rowspan=1 > Monmouth </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > Northeast </td></tr>
<tr> <td colspan=1 rowspan=1 > Morehead State </td><td colspan=1 rowspan=1 > Ohio Valley </td><td colspan=1 rowspan=1 > I-AA Independent </td></tr>
<tr> <td colspan=1 rowspan=1 > Portland State </td><td colspan=1 rowspan=1 > D-II Independent </td><td colspan=1 rowspan=1 > Big Sky (I-AA) </td></tr>
<tr> <td colspan=1 rowspan=1 > Robert Morris </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > Northeast </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Sacramento State </td><td class="highlighted"  colspan=1 rowspan=1 > American West </td><td class="highlighted"  colspan=1 rowspan=1 > I-AA Independent </td></tr>
<tr> <td colspan=1 rowspan=1 > St. Francis (PA) </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > Northeast </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Southern Utah </td><td class="highlighted"  colspan=1 rowspan=1 > American West </td><td class="highlighted"  colspan=1 rowspan=1 > I-AA Independent </td></tr>
<tr> <td colspan=1 rowspan=1 > Troy State </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > Southland </td></tr>
<tr> <td colspan=1 rowspan=1 > UAB </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > I-A Independent </td></tr>
<tr> <td colspan=1 rowspan=1 > Wagner </td><td colspan=1 rowspan=1 > I-AA Independent </td><td colspan=1 rowspan=1 > Northeast </td></tr>
</table>
Question:
Who left the American West Conference in 1995?
Answer:
The Cal Poly, Sacramento State, and Southern Utah disbanded from the American West Conference in 1995 and became independents and the Cal State Northridge joined the Big Sky.