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:
Duncan Edwards
Table title:
Career statistics
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=2 > Club </th><th colspan=1 rowspan=2 > Season </th><th colspan=2 rowspan=1 > Football League First Division </th><th colspan=2 rowspan=1 > FA Cup </th><th colspan=2 rowspan=1 > European Cup </th><th colspan=2 rowspan=1 > Charity Shield </th><th colspan=2 rowspan=1 > Total </th></tr>
<tr> <th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th><th colspan=1 rowspan=1 > Apps </th><th colspan=1 rowspan=1 > Goals </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=6 > Manchester United </td><td colspan=1 rowspan=1 > 1952–53 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1953–54 </td><td colspan=1 rowspan=1 > 24 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 25 </td><td colspan=1 rowspan=1 > 0 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1954–55 </td><td colspan=1 rowspan=1 > 33 </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 36 </td><td colspan=1 rowspan=1 > 6 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1955–56 </td><td colspan=1 rowspan=1 > 33 </td><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 33 </td><td colspan=1 rowspan=1 > 3 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1956–57 </td><td colspan=1 rowspan=1 > 34 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 48 </td><td colspan=1 rowspan=1 > 6 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1957–58 </td><td colspan=1 rowspan=1 > 26 </td><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 34 </td><td colspan=1 rowspan=1 > 6 </td></tr>
<tr> <th colspan=2 rowspan=1 > Career total </th><th colspan=1 rowspan=1 > 151 </th><th colspan=1 rowspan=1 > 20 </th><th colspan=1 rowspan=1 > 12 </th><th colspan=1 rowspan=1 > 1 </th><th colspan=1 rowspan=1 > 12 </th><th colspan=1 rowspan=1 > 0 </th><th colspan=1 rowspan=1 > 2 </th><th colspan=1 rowspan=1 > 0 </th><th class="highlighted"  colspan=1 rowspan=1 > 177 </th><th colspan=1 rowspan=1 > 21 </th></tr>
</table>
Question:
What happened to Duncan Edwards' appearances after the 1955-1956 season?
Answer:
After 33 appearances in the 1955-1956 season, Duncan Edwards made 48 of his total 177 appearances in the 1956-1957 season.